/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 00:12:38,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 00:12:38,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 00:12:38,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-28 00:12:38,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-28 00:12:38,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-28 00:12:38,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-28 00:12:38,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-28 00:12:38,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-28 00:12:38,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-28 00:12:38,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-28 00:12:38,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-28 00:12:38,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-28 00:12:38,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-28 00:12:38,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-28 00:12:38,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-28 00:12:38,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-28 00:12:38,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-28 00:12:38,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-28 00:12:38,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-28 00:12:38,674 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-28 00:12:38,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-28 00:12:38,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-28 00:12:38,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-28 00:12:38,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-28 00:12:38,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-28 00:12:38,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 00:12:38,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 00:12:38,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 00:12:38,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-28 00:12:38,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 00:12:38,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 00:12:38,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-28 00:12:38,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-28 00:12:38,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-28 00:12:38,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-28 00:12:38,721 INFO L138 SettingsManager]: * Use SBE=true [2022-04-28 00:12:38,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 00:12:38,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 00:12:38,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 00:12:38,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 00:12:38,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 00:12:38,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 00:12:38,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 00:12:38,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 00:12:38,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 00:12:38,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 00:12:38,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 00:12:38,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 00:12:38,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 00:12:38,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 00:12:38,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-28 00:12:38,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-28 00:12:38,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-28 00:12:38,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-28 00:12:38,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 00:12:38,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-28 00:12:38,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-28 00:12:38,725 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-28 00:12:38,725 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 00:12:38,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 00:12:38,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 00:12:38,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 00:12:38,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 00:12:38,987 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 00:12:38,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound2.c [2022-04-28 00:12:39,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8167a4f/9ecd6334c5fc49809083142c9df07e1f/FLAGe703d5dff [2022-04-28 00:12:39,373 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 00:12:39,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound2.c [2022-04-28 00:12:39,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8167a4f/9ecd6334c5fc49809083142c9df07e1f/FLAGe703d5dff [2022-04-28 00:12:39,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8167a4f/9ecd6334c5fc49809083142c9df07e1f [2022-04-28 00:12:39,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 00:12:39,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-28 00:12:39,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 00:12:39,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 00:12:39,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 00:12:39,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 12:12:39" (1/1) ... [2022-04-28 00:12:39,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d39f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:39, skipping insertion in model container [2022-04-28 00:12:39,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 12:12:39" (1/1) ... [2022-04-28 00:12:39,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 00:12:39,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 00:12:39,978 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/geo3-ll_unwindbound2.c[525,538] [2022-04-28 00:12:40,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 00:12:40,011 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 00:12:40,021 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/geo3-ll_unwindbound2.c[525,538] [2022-04-28 00:12:40,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 00:12:40,041 INFO L208 MainTranslator]: Completed translation [2022-04-28 00:12:40,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40 WrapperNode [2022-04-28 00:12:40,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 00:12:40,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 00:12:40,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 00:12:40,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 00:12:40,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 00:12:40,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 00:12:40,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 00:12:40,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 00:12:40,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 00:12:40,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 00:12:40,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-28 00:12:40,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-28 00:12:40,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 00:12:40,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 00:12:40,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 00:12:40,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-28 00:12:40,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 00:12:40,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 00:12:40,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 00:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 00:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 00:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 00:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 00:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 00:12:40,192 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 00:12:40,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 00:12:40,374 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 00:12:40,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 00:12:40,380 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-28 00:12:40,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 12:12:40 BoogieIcfgContainer [2022-04-28 00:12:40,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 00:12:40,383 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-28 00:12:40,383 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-28 00:12:40,406 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-28 00:12:40,410 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 12:12:40" (1/1) ... [2022-04-28 00:12:40,412 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-28 00:12:40,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 12:12:40 BasicIcfg [2022-04-28 00:12:40,446 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-28 00:12:40,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 00:12:40,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 00:12:40,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 00:12:40,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 12:12:39" (1/4) ... [2022-04-28 00:12:40,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204b674f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 12:12:40, skipping insertion in model container [2022-04-28 00:12:40,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 12:12:40" (2/4) ... [2022-04-28 00:12:40,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204b674f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 12:12:40, skipping insertion in model container [2022-04-28 00:12:40,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 12:12:40" (3/4) ... [2022-04-28 00:12:40,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204b674f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 12:12:40, skipping insertion in model container [2022-04-28 00:12:40,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 12:12:40" (4/4) ... [2022-04-28 00:12:40,454 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound2.cqvasr [2022-04-28 00:12:40,466 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-28 00:12:40,467 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 00:12:40,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 00:12:40,556 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@81b03f5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ffe3e87 [2022-04-28 00:12:40,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 00:12:40,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 00:12:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-28 00:12:40,592 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 00:12:40,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 00:12:40,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 00:12:40,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 00:12:40,607 INFO L85 PathProgramCache]: Analyzing trace with hash -630084848, now seen corresponding path program 1 times [2022-04-28 00:12:40,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 00:12:40,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760085425] [2022-04-28 00:12:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 00:12:40,760 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 00:12:40,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942781736] [2022-04-28 00:12:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:40,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:40,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 00:12:40,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 00:12:40,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-28 00:12:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:40,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2022-04-28 00:12:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:40,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 00:12:40,973 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-28 00:12:40,975 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} [59] 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] {25#true} is VALID [2022-04-28 00:12:40,975 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-28 00:12:40,975 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-28 00:12:40,975 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#true} is VALID [2022-04-28 00:12:40,976 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {25#true} is VALID [2022-04-28 00:12:40,977 INFO L290 TraceCheckUtils]: 6: Hoare triple {25#true} [63] L34-3-->L34-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {26#false} is VALID [2022-04-28 00:12:40,977 INFO L272 TraceCheckUtils]: 7: Hoare triple {26#false} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {26#false} is VALID [2022-04-28 00:12:40,977 INFO L290 TraceCheckUtils]: 8: Hoare triple {26#false} [69] __VERIFIER_assertENTRY-->L15: 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] {26#false} is VALID [2022-04-28 00:12:40,978 INFO L290 TraceCheckUtils]: 9: Hoare triple {26#false} [72] L15-->L16: 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[] {26#false} is VALID [2022-04-28 00:12:40,979 INFO L290 TraceCheckUtils]: 10: Hoare triple {26#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#false} is VALID [2022-04-28 00:12:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:40,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 00:12:40,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 00:12:40,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760085425] [2022-04-28 00:12:40,981 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 00:12:40,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942781736] [2022-04-28 00:12:40,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942781736] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 00:12:40,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 00:12:40,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-28 00:12:40,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047311320] [2022-04-28 00:12:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 00:12:40,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 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 [2022-04-28 00:12:40,991 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 00:12:40,994 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:41,022 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:41,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-28 00:12:41,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 00:12:41,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-28 00:12:41,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-28 00:12:41,059 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:41,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:41,149 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2022-04-28 00:12:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-28 00:12:41,149 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 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 [2022-04-28 00:12:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 00:12:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 48 transitions. [2022-04-28 00:12:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:41,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 48 transitions. [2022-04-28 00:12:41,168 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 2 states and 48 transitions. [2022-04-28 00:12:41,354 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:41,363 INFO L225 Difference]: With dead ends: 38 [2022-04-28 00:12:41,363 INFO L226 Difference]: Without dead ends: 17 [2022-04-28 00:12:41,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-28 00:12:41,372 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 00:12:41,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 00:12:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-04-28 00:12:41,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-04-28 00:12:41,433 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 00:12:41,434 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:41,435 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:41,435 INFO L87 Difference]: Start difference. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:41,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:41,441 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-04-28 00:12:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-04-28 00:12:41,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:41,442 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:41,443 INFO L74 IsIncluded]: Start isIncluded. First operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 17 states. [2022-04-28 00:12:41,443 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 17 states. [2022-04-28 00:12:41,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:41,451 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-04-28 00:12:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-04-28 00:12:41,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:41,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:41,458 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 00:12:41,458 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 00:12:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-04-28 00:12:41,462 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-04-28 00:12:41,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 00:12:41,462 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-04-28 00:12:41,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-04-28 00:12:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-28 00:12:41,463 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 00:12:41,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 00:12:41,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-28 00:12:41,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-04-28 00:12:41,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 00:12:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 00:12:41,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1971636769, now seen corresponding path program 1 times [2022-04-28 00:12:41,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 00:12:41,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854453471] [2022-04-28 00:12:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:41,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 00:12:41,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 00:12:41,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367168559] [2022-04-28 00:12:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:41,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:41,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 00:12:41,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 00:12:41,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-28 00:12:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:41,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-28 00:12:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:41,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 00:12:42,091 INFO L272 TraceCheckUtils]: 0: Hoare triple {168#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {168#true} is VALID [2022-04-28 00:12:42,093 INFO L290 TraceCheckUtils]: 1: Hoare triple {168#true} [59] 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] {176#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:42,093 INFO L290 TraceCheckUtils]: 2: Hoare triple {176#(<= ~counter~0 0)} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {176#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:42,094 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {176#(<= ~counter~0 0)} {168#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {176#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:42,104 INFO L272 TraceCheckUtils]: 4: Hoare triple {176#(<= ~counter~0 0)} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {176#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:42,105 INFO L290 TraceCheckUtils]: 5: Hoare triple {176#(<= ~counter~0 0)} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {176#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:42,106 INFO L290 TraceCheckUtils]: 6: Hoare triple {176#(<= ~counter~0 0)} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {192#(<= |main_#t~post7| 0)} is VALID [2022-04-28 00:12:42,106 INFO L290 TraceCheckUtils]: 7: Hoare triple {192#(<= |main_#t~post7| 0)} [66] L34-1-->L34-4: Formula: (not (< |v_main_#t~post7_2| 2)) InVars {main_#t~post7=|v_main_#t~post7_2|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {169#false} is VALID [2022-04-28 00:12:42,107 INFO L272 TraceCheckUtils]: 8: Hoare triple {169#false} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {169#false} is VALID [2022-04-28 00:12:42,107 INFO L290 TraceCheckUtils]: 9: Hoare triple {169#false} [69] __VERIFIER_assertENTRY-->L15: 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] {169#false} is VALID [2022-04-28 00:12:42,109 INFO L290 TraceCheckUtils]: 10: Hoare triple {169#false} [72] L15-->L16: 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[] {169#false} is VALID [2022-04-28 00:12:42,109 INFO L290 TraceCheckUtils]: 11: Hoare triple {169#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {169#false} is VALID [2022-04-28 00:12:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:42,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 00:12:42,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 00:12:42,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854453471] [2022-04-28 00:12:42,110 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 00:12:42,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367168559] [2022-04-28 00:12:42,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367168559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 00:12:42,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 00:12:42,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-28 00:12:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147129311] [2022-04-28 00:12:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 00:12:42,112 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 [2022-04-28 00:12:42,112 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 00:12:42,112 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) [2022-04-28 00:12:42,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:42,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-28 00:12:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 00:12:42,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-28 00:12:42,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-28 00:12:42,143 INFO L87 Difference]: Start difference. First operand 17 states and 19 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) [2022-04-28 00:12:42,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:42,232 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-04-28 00:12:42,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-28 00:12:42,232 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 [2022-04-28 00:12:42,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 00:12:42,233 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) [2022-04-28 00:12:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2022-04-28 00:12:42,235 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) [2022-04-28 00:12:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2022-04-28 00:12:42,243 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 28 transitions. [2022-04-28 00:12:42,281 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:42,284 INFO L225 Difference]: With dead ends: 26 [2022-04-28 00:12:42,284 INFO L226 Difference]: Without dead ends: 19 [2022-04-28 00:12:42,284 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 [2022-04-28 00:12:42,287 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 00:12:42,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 00:12:42,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-04-28 00:12:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-04-28 00:12:42,296 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 00:12:42,297 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:42,297 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:42,298 INFO L87 Difference]: Start difference. First operand 19 states. Second operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:42,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:42,300 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-04-28 00:12:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-04-28 00:12:42,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:42,301 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:42,302 INFO L74 IsIncluded]: Start isIncluded. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states. [2022-04-28 00:12:42,302 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 19 states. [2022-04-28 00:12:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:42,322 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-04-28 00:12:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-04-28 00:12:42,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:42,323 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:42,324 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 00:12:42,324 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 00:12:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 00:12:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-04-28 00:12:42,326 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2022-04-28 00:12:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 00:12:42,327 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-04-28 00:12:42,330 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) [2022-04-28 00:12:42,331 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-04-28 00:12:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-28 00:12:42,331 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 00:12:42,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 00:12:42,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-28 00:12:42,554 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,SelfDestructingSolverStorable1 [2022-04-28 00:12:42,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 00:12:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 00:12:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1972709245, now seen corresponding path program 1 times [2022-04-28 00:12:42,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 00:12:42,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332324499] [2022-04-28 00:12:42,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:42,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 00:12:42,569 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 00:12:42,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461679037] [2022-04-28 00:12:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:42,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:42,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 00:12:42,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 00:12:42,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-28 00:12:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:42,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2022-04-28 00:12:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:42,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 00:12:42,910 INFO L272 TraceCheckUtils]: 0: Hoare triple {310#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID [2022-04-28 00:12:42,910 INFO L290 TraceCheckUtils]: 1: Hoare triple {310#true} [59] 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] {310#true} is VALID [2022-04-28 00:12:42,910 INFO L290 TraceCheckUtils]: 2: Hoare triple {310#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID [2022-04-28 00:12:42,911 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {310#true} {310#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID [2022-04-28 00:12:42,911 INFO L272 TraceCheckUtils]: 4: Hoare triple {310#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {310#true} is VALID [2022-04-28 00:12:42,912 INFO L290 TraceCheckUtils]: 5: Hoare triple {310#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:42,912 INFO L290 TraceCheckUtils]: 6: Hoare triple {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:42,913 INFO L290 TraceCheckUtils]: 7: Hoare triple {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:42,914 INFO L272 TraceCheckUtils]: 8: Hoare triple {330#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {340#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 00:12:42,914 INFO L290 TraceCheckUtils]: 9: Hoare triple {340#(<= 1 |__VERIFIER_assert_#in~cond|)} [69] __VERIFIER_assertENTRY-->L15: 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] {344#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 00:12:42,915 INFO L290 TraceCheckUtils]: 10: Hoare triple {344#(<= 1 __VERIFIER_assert_~cond)} [72] L15-->L16: 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[] {311#false} is VALID [2022-04-28 00:12:42,915 INFO L290 TraceCheckUtils]: 11: Hoare triple {311#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {311#false} is VALID [2022-04-28 00:12:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:42,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 00:12:42,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 00:12:42,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332324499] [2022-04-28 00:12:42,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 00:12:42,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461679037] [2022-04-28 00:12:42,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461679037] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 00:12:42,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 00:12:42,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 00:12:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166516787] [2022-04-28 00:12:42,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 00:12:42,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 [2022-04-28 00:12:42,917 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 00:12:42,917 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:42,942 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:42,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 00:12:42,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 00:12:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 00:12:42,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-28 00:12:42,944 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:43,054 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-04-28 00:12:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 00:12:43,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 [2022-04-28 00:12:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 00:12:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-04-28 00:12:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-04-28 00:12:43,058 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 31 transitions. [2022-04-28 00:12:43,085 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:43,086 INFO L225 Difference]: With dead ends: 28 [2022-04-28 00:12:43,087 INFO L226 Difference]: Without dead ends: 25 [2022-04-28 00:12:43,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-28 00:12:43,090 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 00:12:43,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 00:12:43,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-04-28 00:12:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-04-28 00:12:43,111 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 00:12:43,112 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,112 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,112 INFO L87 Difference]: Start difference. First operand 25 states. Second operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:43,128 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-04-28 00:12:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-04-28 00:12:43,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:43,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:43,129 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states. [2022-04-28 00:12:43,129 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 25 states. [2022-04-28 00:12:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:43,131 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-04-28 00:12:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-04-28 00:12:43,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:43,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:43,132 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 00:12:43,132 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 00:12:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-04-28 00:12:43,133 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 12 [2022-04-28 00:12:43,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 00:12:43,134 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-04-28 00:12:43,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 00:12:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-04-28 00:12:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-28 00:12:43,135 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 00:12:43,135 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 00:12:43,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-28 00:12:43,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:43,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 00:12:43,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 00:12:43,344 INFO L85 PathProgramCache]: Analyzing trace with hash -832305310, now seen corresponding path program 1 times [2022-04-28 00:12:43,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 00:12:43,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115875641] [2022-04-28 00:12:43,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 00:12:43,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 00:12:43,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333895583] [2022-04-28 00:12:43,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:43,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 00:12:43,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 00:12:43,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-28 00:12:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:43,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 00:12:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:43,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 00:12:43,598 INFO L272 TraceCheckUtils]: 0: Hoare triple {478#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID [2022-04-28 00:12:43,599 INFO L290 TraceCheckUtils]: 1: Hoare triple {478#true} [59] 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] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,600 INFO L290 TraceCheckUtils]: 2: Hoare triple {486#(<= ~counter~0 0)} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,600 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {486#(<= ~counter~0 0)} {478#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,601 INFO L272 TraceCheckUtils]: 4: Hoare triple {486#(<= ~counter~0 0)} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,601 INFO L290 TraceCheckUtils]: 5: Hoare triple {486#(<= ~counter~0 0)} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,602 INFO L290 TraceCheckUtils]: 6: Hoare triple {486#(<= ~counter~0 0)} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,602 INFO L290 TraceCheckUtils]: 7: Hoare triple {502#(<= ~counter~0 1)} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,604 INFO L272 TraceCheckUtils]: 8: Hoare triple {502#(<= ~counter~0 1)} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,605 INFO L290 TraceCheckUtils]: 9: Hoare triple {502#(<= ~counter~0 1)} [69] __VERIFIER_assertENTRY-->L15: 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] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,605 INFO L290 TraceCheckUtils]: 10: Hoare triple {502#(<= ~counter~0 1)} [73] L15-->L15-2: Formula: (not (= 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[] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,606 INFO L290 TraceCheckUtils]: 11: Hoare triple {502#(<= ~counter~0 1)} [78] L15-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,607 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {502#(<= ~counter~0 1)} {502#(<= ~counter~0 1)} [81] __VERIFIER_assertEXIT-->L35-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,607 INFO L290 TraceCheckUtils]: 13: Hoare triple {502#(<= ~counter~0 1)} [75] L35-1-->L34-3: Formula: (and (= (+ v_main_~a~0_5 (* v_main_~x~0_6 v_main_~z~0_5)) v_main_~x~0_5) (= v_main_~y~0_5 (* v_main_~y~0_6 v_main_~z~0_5)) (< v_main_~c~0_6 v_main_~k~0_5) (= (+ v_main_~c~0_6 1) v_main_~c~0_5)) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_5, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,608 INFO L290 TraceCheckUtils]: 14: Hoare triple {502#(<= ~counter~0 1)} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {527#(<= |main_#t~post7| 1)} is VALID [2022-04-28 00:12:43,611 INFO L290 TraceCheckUtils]: 15: Hoare triple {527#(<= |main_#t~post7| 1)} [66] L34-1-->L34-4: Formula: (not (< |v_main_#t~post7_2| 2)) InVars {main_#t~post7=|v_main_#t~post7_2|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {479#false} is VALID [2022-04-28 00:12:43,611 INFO L272 TraceCheckUtils]: 16: Hoare triple {479#false} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {479#false} is VALID [2022-04-28 00:12:43,612 INFO L290 TraceCheckUtils]: 17: Hoare triple {479#false} [69] __VERIFIER_assertENTRY-->L15: 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] {479#false} is VALID [2022-04-28 00:12:43,612 INFO L290 TraceCheckUtils]: 18: Hoare triple {479#false} [72] L15-->L16: 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[] {479#false} is VALID [2022-04-28 00:12:43,612 INFO L290 TraceCheckUtils]: 19: Hoare triple {479#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {479#false} is VALID [2022-04-28 00:12:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:43,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 00:12:43,765 INFO L290 TraceCheckUtils]: 19: Hoare triple {479#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {479#false} is VALID [2022-04-28 00:12:43,766 INFO L290 TraceCheckUtils]: 18: Hoare triple {479#false} [72] L15-->L16: 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[] {479#false} is VALID [2022-04-28 00:12:43,766 INFO L290 TraceCheckUtils]: 17: Hoare triple {479#false} [69] __VERIFIER_assertENTRY-->L15: 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] {479#false} is VALID [2022-04-28 00:12:43,766 INFO L272 TraceCheckUtils]: 16: Hoare triple {479#false} [65] L34-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~x~0_10 v_main_~z~0_8) (* (- 1) v_main_~x~0_10) v_main_~a~0_8 (* (- 1) (* v_main_~y~0_9 v_main_~az~0_7))) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_2|) InVars {main_~az~0=v_main_~az~0_7, main_~y~0=v_main_~y~0_9, main_~x~0=v_main_~x~0_10, main_~z~0=v_main_~z~0_8, main_~a~0=v_main_~a~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {479#false} is VALID [2022-04-28 00:12:43,770 INFO L290 TraceCheckUtils]: 15: Hoare triple {527#(<= |main_#t~post7| 1)} [66] L34-1-->L34-4: Formula: (not (< |v_main_#t~post7_2| 2)) InVars {main_#t~post7=|v_main_#t~post7_2|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {479#false} is VALID [2022-04-28 00:12:43,770 INFO L290 TraceCheckUtils]: 14: Hoare triple {502#(<= ~counter~0 1)} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {527#(<= |main_#t~post7| 1)} is VALID [2022-04-28 00:12:43,771 INFO L290 TraceCheckUtils]: 13: Hoare triple {502#(<= ~counter~0 1)} [75] L35-1-->L34-3: Formula: (and (= (+ v_main_~a~0_5 (* v_main_~x~0_6 v_main_~z~0_5)) v_main_~x~0_5) (= v_main_~y~0_5 (* v_main_~y~0_6 v_main_~z~0_5)) (< v_main_~c~0_6 v_main_~k~0_5) (= (+ v_main_~c~0_6 1) v_main_~c~0_5)) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_5, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,772 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {478#true} {502#(<= ~counter~0 1)} [81] __VERIFIER_assertEXIT-->L35-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,772 INFO L290 TraceCheckUtils]: 11: Hoare triple {478#true} [78] L15-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID [2022-04-28 00:12:43,772 INFO L290 TraceCheckUtils]: 10: Hoare triple {478#true} [73] L15-->L15-2: Formula: (not (= 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[] {478#true} is VALID [2022-04-28 00:12:43,772 INFO L290 TraceCheckUtils]: 9: Hoare triple {478#true} [69] __VERIFIER_assertENTRY-->L15: 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] {478#true} is VALID [2022-04-28 00:12:43,772 INFO L272 TraceCheckUtils]: 8: Hoare triple {502#(<= ~counter~0 1)} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {478#true} is VALID [2022-04-28 00:12:43,773 INFO L290 TraceCheckUtils]: 7: Hoare triple {502#(<= ~counter~0 1)} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,773 INFO L290 TraceCheckUtils]: 6: Hoare triple {486#(<= ~counter~0 0)} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {502#(<= ~counter~0 1)} is VALID [2022-04-28 00:12:43,774 INFO L290 TraceCheckUtils]: 5: Hoare triple {486#(<= ~counter~0 0)} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,774 INFO L272 TraceCheckUtils]: 4: Hoare triple {486#(<= ~counter~0 0)} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,775 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {486#(<= ~counter~0 0)} {478#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,775 INFO L290 TraceCheckUtils]: 2: Hoare triple {486#(<= ~counter~0 0)} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,776 INFO L290 TraceCheckUtils]: 1: Hoare triple {478#true} [59] 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] {486#(<= ~counter~0 0)} is VALID [2022-04-28 00:12:43,776 INFO L272 TraceCheckUtils]: 0: Hoare triple {478#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {478#true} is VALID [2022-04-28 00:12:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:43,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 00:12:43,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115875641] [2022-04-28 00:12:43,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 00:12:43,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333895583] [2022-04-28 00:12:43,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333895583] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 00:12:43,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-28 00:12:43,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-04-28 00:12:43,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535041394] [2022-04-28 00:12:43,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-28 00:12:43,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-04-28 00:12:43,778 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 00:12:43,778 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:43,797 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:43,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 00:12:43,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 00:12:43,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 00:12:43,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-28 00:12:43,799 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:43,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:43,876 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-04-28 00:12:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-28 00:12:43,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-04-28 00:12:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 00:12:43,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:43,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2022-04-28 00:12:43,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2022-04-28 00:12:43,881 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 36 transitions. [2022-04-28 00:12:43,907 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:43,909 INFO L225 Difference]: With dead ends: 34 [2022-04-28 00:12:43,909 INFO L226 Difference]: Without dead ends: 27 [2022-04-28 00:12:43,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-28 00:12:43,910 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 00:12:43,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 58 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 00:12:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-28 00:12:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-28 00:12:43,918 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 00:12:43,918 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,919 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,919 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:43,920 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-04-28 00:12:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-04-28 00:12:43,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:43,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:43,921 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-28 00:12:43,922 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-28 00:12:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:43,923 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-04-28 00:12:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-04-28 00:12:43,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:12:43,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:12:43,924 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 00:12:43,924 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 00:12:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 00:12:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-04-28 00:12:43,926 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 20 [2022-04-28 00:12:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 00:12:43,926 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-04-28 00:12:43,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-04-28 00:12:43,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-28 00:12:43,927 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 00:12:43,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 00:12:43,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-28 00:12:44,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:44,141 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 00:12:44,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 00:12:44,143 INFO L85 PathProgramCache]: Analyzing trace with hash -831232834, now seen corresponding path program 1 times [2022-04-28 00:12:44,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 00:12:44,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53342520] [2022-04-28 00:12:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:44,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 00:12:44,178 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 00:12:44,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751416010] [2022-04-28 00:12:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 00:12:44,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:12:44,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 00:12:44,188 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-28 00:12:44,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-28 00:12:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:44,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 22 conjunts are in the unsatisfiable core [2022-04-28 00:12:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 00:12:44,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 00:12:44,478 INFO L272 TraceCheckUtils]: 0: Hoare triple {745#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:44,478 INFO L290 TraceCheckUtils]: 1: Hoare triple {745#true} [59] 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] {745#true} is VALID [2022-04-28 00:12:44,478 INFO L290 TraceCheckUtils]: 2: Hoare triple {745#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:44,478 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {745#true} {745#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:44,479 INFO L272 TraceCheckUtils]: 4: Hoare triple {745#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:44,479 INFO L290 TraceCheckUtils]: 5: Hoare triple {745#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,480 INFO L290 TraceCheckUtils]: 6: Hoare triple {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,481 INFO L290 TraceCheckUtils]: 7: Hoare triple {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,481 INFO L272 TraceCheckUtils]: 8: Hoare triple {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {745#true} is VALID [2022-04-28 00:12:44,481 INFO L290 TraceCheckUtils]: 9: Hoare triple {745#true} [69] __VERIFIER_assertENTRY-->L15: 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] {778#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-28 00:12:44,482 INFO L290 TraceCheckUtils]: 10: Hoare triple {778#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [73] L15-->L15-2: Formula: (not (= 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[] {782#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 00:12:44,482 INFO L290 TraceCheckUtils]: 11: Hoare triple {782#(not (= |__VERIFIER_assert_#in~cond| 0))} [78] L15-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {782#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 00:12:44,483 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {782#(not (= |__VERIFIER_assert_#in~cond| 0))} {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [81] __VERIFIER_assertEXIT-->L35-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,484 INFO L290 TraceCheckUtils]: 13: Hoare triple {765#(and (= main_~y~0 1) (= main_~a~0 main_~x~0) (= (* main_~a~0 main_~z~0) main_~az~0))} [75] L35-1-->L34-3: Formula: (and (= (+ v_main_~a~0_5 (* v_main_~x~0_6 v_main_~z~0_5)) v_main_~x~0_5) (= v_main_~y~0_5 (* v_main_~y~0_6 v_main_~z~0_5)) (< v_main_~c~0_6 v_main_~k~0_5) (= (+ v_main_~c~0_6 1) v_main_~c~0_5)) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_5, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {792#(and (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,485 INFO L290 TraceCheckUtils]: 14: Hoare triple {792#(and (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)) (= (* main_~a~0 main_~z~0) main_~az~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {792#(and (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,485 INFO L290 TraceCheckUtils]: 15: Hoare triple {792#(and (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)) (= (* main_~a~0 main_~z~0) main_~az~0))} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {792#(and (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)) (= (* main_~a~0 main_~z~0) main_~az~0))} is VALID [2022-04-28 00:12:44,489 INFO L272 TraceCheckUtils]: 16: Hoare triple {792#(and (= main_~z~0 main_~y~0) (= main_~x~0 (+ (* main_~a~0 main_~z~0) main_~a~0)) (= (* main_~a~0 main_~z~0) main_~az~0))} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {802#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 00:12:44,489 INFO L290 TraceCheckUtils]: 17: Hoare triple {802#(<= 1 |__VERIFIER_assert_#in~cond|)} [69] __VERIFIER_assertENTRY-->L15: 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] {806#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 00:12:44,490 INFO L290 TraceCheckUtils]: 18: Hoare triple {806#(<= 1 __VERIFIER_assert_~cond)} [72] L15-->L16: 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[] {746#false} is VALID [2022-04-28 00:12:44,490 INFO L290 TraceCheckUtils]: 19: Hoare triple {746#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {746#false} is VALID [2022-04-28 00:12:44,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:44,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 00:12:57,368 INFO L290 TraceCheckUtils]: 19: Hoare triple {746#false} [76] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {746#false} is VALID [2022-04-28 00:12:57,369 INFO L290 TraceCheckUtils]: 18: Hoare triple {806#(<= 1 __VERIFIER_assert_~cond)} [72] L15-->L16: 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[] {746#false} is VALID [2022-04-28 00:12:57,370 INFO L290 TraceCheckUtils]: 17: Hoare triple {802#(<= 1 |__VERIFIER_assert_#in~cond|)} [69] __VERIFIER_assertENTRY-->L15: 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] {806#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 00:12:57,371 INFO L272 TraceCheckUtils]: 16: Hoare triple {822#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {802#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 00:12:57,371 INFO L290 TraceCheckUtils]: 15: Hoare triple {822#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {822#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} is VALID [2022-04-28 00:12:57,372 INFO L290 TraceCheckUtils]: 14: Hoare triple {822#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {822#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} is VALID [2022-04-28 00:12:57,411 INFO L290 TraceCheckUtils]: 13: Hoare triple {832#(= (+ (* main_~z~0 main_~x~0) main_~a~0 (* main_~az~0 (* main_~z~0 main_~y~0))) (+ main_~a~0 (* main_~z~0 (+ (* main_~z~0 main_~x~0) main_~a~0))))} [75] L35-1-->L34-3: Formula: (and (= (+ v_main_~a~0_5 (* v_main_~x~0_6 v_main_~z~0_5)) v_main_~x~0_5) (= v_main_~y~0_5 (* v_main_~y~0_6 v_main_~z~0_5)) (< v_main_~c~0_6 v_main_~k~0_5) (= (+ v_main_~c~0_6 1) v_main_~c~0_5)) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_6, main_~a~0=v_main_~a~0_5} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_5, main_~k~0=v_main_~k~0_5, main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_5, main_~a~0=v_main_~a~0_5} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {822#(= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))} is VALID [2022-04-28 00:12:57,416 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {782#(not (= |__VERIFIER_assert_#in~cond| 0))} {745#true} [81] __VERIFIER_assertEXIT-->L35-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {832#(= (+ (* main_~z~0 main_~x~0) main_~a~0 (* main_~az~0 (* main_~z~0 main_~y~0))) (+ main_~a~0 (* main_~z~0 (+ (* main_~z~0 main_~x~0) main_~a~0))))} is VALID [2022-04-28 00:12:57,416 INFO L290 TraceCheckUtils]: 11: Hoare triple {782#(not (= |__VERIFIER_assert_#in~cond| 0))} [78] L15-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {782#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 00:12:57,417 INFO L290 TraceCheckUtils]: 10: Hoare triple {845#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} [73] L15-->L15-2: Formula: (not (= 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[] {782#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 00:12:57,418 INFO L290 TraceCheckUtils]: 9: Hoare triple {745#true} [69] __VERIFIER_assertENTRY-->L15: 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] {845#(or (not (= |__VERIFIER_assert_#in~cond| 0)) (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-28 00:12:57,418 INFO L272 TraceCheckUtils]: 8: Hoare triple {745#true} [70] L35-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* v_main_~x~0_9 v_main_~z~0_7) v_main_~a~0_7 (* (- 1) v_main_~x~0_9) (* (- 1) (* v_main_~y~0_8 v_main_~az~0_6))) 0) 1 0)) InVars {main_~az~0=v_main_~az~0_6, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_7, main_~a~0=v_main_~a~0_7} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[main_~az~0, __VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0, main_~a~0] {745#true} is VALID [2022-04-28 00:12:57,418 INFO L290 TraceCheckUtils]: 7: Hoare triple {745#true} [67] L34-1-->L35: Formula: (< |v_main_#t~post7_4| 2) InVars {main_#t~post7=|v_main_#t~post7_4|} OutVars{} AuxVars[] AssignedVars[main_#t~post7] {745#true} is VALID [2022-04-28 00:12:57,418 INFO L290 TraceCheckUtils]: 6: Hoare triple {745#true} [64] L34-3-->L34-1: Formula: (and (= |v_main_#t~post7_5| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post7_5| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post7=|v_main_#t~post7_5|} AuxVars[] AssignedVars[~counter~0, main_#t~post7] {745#true} is VALID [2022-04-28 00:12:57,418 INFO L290 TraceCheckUtils]: 5: Hoare triple {745#true} [61] mainENTRY-->L34-3: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~a~0_2 |v_main_#t~nondet5_2|) (<= |v_main_#t~nondet6_2| 2147483647) (= (* v_main_~a~0_2 v_main_~z~0_2) v_main_~az~0_2) (= v_main_~c~0_2 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet6_2| 2147483648)) (= v_main_~a~0_2 v_main_~x~0_2) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~k~0_2 |v_main_#t~nondet6_2|) (= v_main_~y~0_2 1) (= v_main_~z~0_2 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|, main_#t~nondet6=|v_main_#t~nondet6_2|} OutVars{main_~az~0=v_main_~az~0_2, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_2, main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_2, main_~a~0=v_main_~a~0_2} AuxVars[] AssignedVars[main_~az~0, main_#t~nondet5, main_#t~nondet4, main_#t~nondet6, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0, main_~a~0] {745#true} is VALID [2022-04-28 00:12:57,418 INFO L272 TraceCheckUtils]: 4: Hoare triple {745#true} [58] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:57,418 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {745#true} {745#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:57,419 INFO L290 TraceCheckUtils]: 2: Hoare triple {745#true} [62] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:57,419 INFO L290 TraceCheckUtils]: 1: Hoare triple {745#true} [59] 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] {745#true} is VALID [2022-04-28 00:12:57,420 INFO L272 TraceCheckUtils]: 0: Hoare triple {745#true} [57] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#true} is VALID [2022-04-28 00:12:57,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 00:12:57,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 00:12:57,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53342520] [2022-04-28 00:12:57,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 00:12:57,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751416010] [2022-04-28 00:12:57,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751416010] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 00:12:57,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-28 00:12:57,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-04-28 00:12:57,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326264161] [2022-04-28 00:12:57,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-28 00:12:57,422 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-04-28 00:12:57,422 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 00:12:57,423 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:57,541 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 00:12:57,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-28 00:12:57,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 00:12:57,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-28 00:12:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-04-28 00:12:57,542 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:59,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:12:59,265 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-04-28 00:12:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-28 00:12:59,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-04-28 00:12:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 00:12:59,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-04-28 00:12:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:12:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-04-28 00:12:59,269 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 31 transitions. [2022-04-28 00:13:02,258 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 30 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2022-04-28 00:13:02,258 INFO L225 Difference]: With dead ends: 30 [2022-04-28 00:13:02,258 INFO L226 Difference]: Without dead ends: 0 [2022-04-28 00:13:02,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-04-28 00:13:02,259 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-28 00:13:02,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 72 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-28 00:13:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-28 00:13:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-28 00:13:02,260 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 00:13:02,260 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 00:13:02,260 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 00:13:02,260 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 00:13:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:13:02,261 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 00:13:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 00:13:02,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:13:02,261 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:13:02,261 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-28 00:13:02,261 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-28 00:13:02,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 00:13:02,261 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 00:13:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 00:13:02,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:13:02,261 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 00:13:02,261 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 00:13:02,261 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 00:13:02,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 00:13:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-28 00:13:02,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-04-28 00:13:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 00:13:02,262 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-28 00:13:02,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-28 00:13:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 00:13:02,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 00:13:02,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-28 00:13:02,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-28 00:13:02,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 00:13:02,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-28 00:13:02,781 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2022-04-28 00:13:02,781 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-28 00:13:02,781 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-28 00:13:02,781 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-28 00:13:02,782 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (<= ~counter~0 0) [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L895 garLoopResultBuilder]: At program point mainENTRY(lines 22 46) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (<= ~counter~0 0)) [2022-04-28 00:13:02,782 INFO L895 garLoopResultBuilder]: At program point L34-3(lines 34 43) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))) [2022-04-28 00:13:02,782 INFO L895 garLoopResultBuilder]: At program point L34-4(lines 34 43) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))) [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (or (not (<= |old(~counter~0)| 0)) (= (+ (* main_~y~0 main_~az~0) main_~x~0) (+ (* main_~z~0 main_~x~0) main_~a~0))) [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 22 46) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 43) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 22 46) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-04-28 00:13:02,782 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-04-28 00:13:02,783 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-04-28 00:13:02,783 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-04-28 00:13:02,785 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-28 00:13:02,787 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-28 00:13:02,791 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-28 00:13:02,793 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-28 00:13:02,793 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-28 00:13:02,793 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-28 00:13:02,793 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-28 00:13:02,793 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-04-28 00:13:02,794 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-28 00:13:02,795 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-28 00:13:02,795 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-28 00:13:02,795 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-28 00:13:02,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 12:13:02 BasicIcfg [2022-04-28 00:13:02,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-28 00:13:02,808 INFO L158 Benchmark]: Toolchain (without parser) took 23011.39ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 130.7MB in the beginning and 186.5MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 00:13:02,822 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 183.5MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 00:13:02,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.75ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 130.5MB in the beginning and 196.8MB in the end (delta: -66.3MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-04-28 00:13:02,823 INFO L158 Benchmark]: Boogie Preprocessor took 27.85ms. Allocated memory is still 220.2MB. Free memory was 196.8MB in the beginning and 195.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 00:13:02,823 INFO L158 Benchmark]: RCFGBuilder took 310.56ms. Allocated memory is still 220.2MB. Free memory was 194.6MB in the beginning and 183.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-28 00:13:02,824 INFO L158 Benchmark]: IcfgTransformer took 63.63ms. Allocated memory is still 220.2MB. Free memory was 183.1MB in the beginning and 181.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 00:13:02,824 INFO L158 Benchmark]: TraceAbstraction took 22359.76ms. Allocated memory is still 220.2MB. Free memory was 181.0MB in the beginning and 186.5MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 00:13:02,826 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 0.14ms. Allocated memory is still 183.5MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.75ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 130.5MB in the beginning and 196.8MB in the end (delta: -66.3MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.85ms. Allocated memory is still 220.2MB. Free memory was 196.8MB in the beginning and 195.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 310.56ms. Allocated memory is still 220.2MB. Free memory was 194.6MB in the beginning and 183.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 63.63ms. Allocated memory is still 220.2MB. Free memory was 183.1MB in the beginning and 181.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 22359.76ms. Allocated memory is still 220.2MB. Free memory was 181.0MB in the beginning and 186.5MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 165 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 91 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=4, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 17 PreInvPairs, 26 NumberOfFragments, 62 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 108 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 6 NumberOfNonLiveVariables, 443 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 9/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: !(\old(counter) <= 0) || y * az + x == z * x + a RESULT: Ultimate proved your program to be correct! [2022-04-28 00:13:02,898 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...