/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/ps2-ll.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 22:46:43,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 22:46:43,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 22:46:43,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 22:46:43,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 22:46:43,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 22:46:43,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 22:46:44,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 22:46:44,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 22:46:44,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 22:46:44,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 22:46:44,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 22:46:44,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 22:46:44,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 22:46:44,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 22:46:44,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 22:46:44,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 22:46:44,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 22:46:44,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 22:46:44,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 22:46:44,018 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 22:46:44,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 22:46:44,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 22:46:44,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 22:46:44,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 22:46:44,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 22:46:44,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 22:46:44,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 22:46:44,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 22:46:44,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-27 22:46:44,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 22:46:44,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 22:46:44,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 22:46:44,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 22:46:44,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 22:46:44,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 22:46:44,060 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 22:46:44,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 22:46:44,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 22:46:44,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 22:46:44,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 22:46:44,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-27 22:46:44,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-27 22:46:44,064 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 22:46:44,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 22:46:44,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 22:46:44,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 22:46:44,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 22:46:44,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 22:46:44,245 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 22:46:44,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/ps2-ll.c [2022-04-27 22:46:44,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eadcd04/99fab9e0d2344a67bbe05f069be37031/FLAG05169bdc1 [2022-04-27 22:46:44,608 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 22:46:44,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/ps2-ll.c [2022-04-27 22:46:44,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eadcd04/99fab9e0d2344a67bbe05f069be37031/FLAG05169bdc1 [2022-04-27 22:46:44,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eadcd04/99fab9e0d2344a67bbe05f069be37031 [2022-04-27 22:46:44,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 22:46:44,625 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 22:46:44,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 22:46:44,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 22:46:44,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 22:46:44,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da2f843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44, skipping insertion in model container [2022-04-27 22:46:44,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 22:46:44,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 22:46:44,769 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/ps2-ll.c[454,467] [2022-04-27 22:46:44,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 22:46:44,784 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 22:46:44,791 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/ps2-ll.c[454,467] [2022-04-27 22:46:44,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 22:46:44,803 INFO L208 MainTranslator]: Completed translation [2022-04-27 22:46:44,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44 WrapperNode [2022-04-27 22:46:44,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 22:46:44,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 22:46:44,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 22:46:44,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 22:46:44,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 22:46:44,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 22:46:44,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 22:46:44,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 22:46:44,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (1/1) ... [2022-04-27 22:46:44,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 22:46:44,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 22:46:44,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-27 22:46:44,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-27 22:46:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 22:46:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 22:46:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 22:46:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 22:46:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 22:46:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 22:46:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 22:46:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 22:46:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 22:46:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 22:46:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 22:46:44,926 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 22:46:44,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 22:46:45,023 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 22:46:45,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 22:46:45,028 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 22:46:45,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:46:45 BoogieIcfgContainer [2022-04-27 22:46:45,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 22:46:45,030 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 22:46:45,030 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 22:46:45,030 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 22:46:45,035 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:46:45" (1/1) ... [2022-04-27 22:46:45,037 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-27 22:46:45,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 10:46:45 BasicIcfg [2022-04-27 22:46:45,064 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 22:46:45,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 22:46:45,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 22:46:45,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 22:46:45,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 10:46:44" (1/4) ... [2022-04-27 22:46:45,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408be5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 10:46:45, skipping insertion in model container [2022-04-27 22:46:45,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 10:46:44" (2/4) ... [2022-04-27 22:46:45,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408be5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 10:46:45, skipping insertion in model container [2022-04-27 22:46:45,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 10:46:45" (3/4) ... [2022-04-27 22:46:45,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408be5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 10:46:45, skipping insertion in model container [2022-04-27 22:46:45,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 10:46:45" (4/4) ... [2022-04-27 22:46:45,069 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll.cqvasr [2022-04-27 22:46:45,079 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 22:46:45,079 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 22:46:45,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 22:46:45,114 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@54ce432d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@74feacda [2022-04-27 22:46:45,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 22:46:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-27 22:46:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 22:46:45,124 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 22:46:45,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 22:46:45,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 22:46:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 22:46:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1229966674, now seen corresponding path program 1 times [2022-04-27 22:46:45,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 22:46:45,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32155025] [2022-04-27 22:46:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 22:46:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 22:46:45,201 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 22:46:45,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963846402] [2022-04-27 22:46:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 22:46:45,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 22:46:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 22:46:45,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-27 22:46:45,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 22:46:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 22:46:45,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 22:46:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 22:46:45,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 22:46:45,464 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} [56] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-27 22:46:45,465 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {24#true} is VALID [2022-04-27 22:46:45,465 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} [61] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-27 22:46:45,465 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} [77] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-27 22:46:45,465 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} [57] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#true} is VALID [2022-04-27 22:46:45,466 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} [60] mainENTRY-->L26-2: Formula: (and (= v_main_~k~0_3 |v_main_#t~nondet4_2|) (= v_main_~c~0_4 0) (= v_main_~y~0_4 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (= v_main_~x~0_4 0) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_4, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {44#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-27 22:46:45,467 INFO L290 TraceCheckUtils]: 6: Hoare triple {44#(and (= main_~x~0 0) (= main_~y~0 0))} [64] L26-2-->L27: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {44#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-27 22:46:45,469 INFO L272 TraceCheckUtils]: 7: Hoare triple {44#(and (= main_~x~0 0) (= main_~y~0 0))} [66] L27-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {51#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 22:46:45,470 INFO L290 TraceCheckUtils]: 8: Hoare triple {51#(<= 1 |__VERIFIER_assert_#in~cond|)} [68] __VERIFIER_assertENTRY-->L10: 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] {55#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 22:46:45,471 INFO L290 TraceCheckUtils]: 9: Hoare triple {55#(<= 1 __VERIFIER_assert_~cond)} [72] L10-->L11: 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[] {25#false} is VALID [2022-04-27 22:46:45,471 INFO L290 TraceCheckUtils]: 10: Hoare triple {25#false} [74] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {25#false} is VALID [2022-04-27 22:46:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 22:46:45,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 22:46:45,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 22:46:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32155025] [2022-04-27 22:46:45,473 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 22:46:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963846402] [2022-04-27 22:46:45,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963846402] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 22:46:45,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 22:46:45,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-27 22:46:45,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318955092] [2022-04-27 22:46:45,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 22:46:45,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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 [2022-04-27 22:46:45,484 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 22:46:45,487 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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) [2022-04-27 22:46:45,501 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 22:46:45,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 22:46:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 22:46:45,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 22:46:45,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-27 22:46:45,532 INFO L87 Difference]: Start difference. First operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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) [2022-04-27 22:46:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 22:46:45,677 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2022-04-27 22:46:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 22:46:45,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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 [2022-04-27 22:46:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 22:46:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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) [2022-04-27 22:46:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2022-04-27 22:46:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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) [2022-04-27 22:46:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2022-04-27 22:46:45,696 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 64 transitions. [2022-04-27 22:46:45,749 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 22:46:45,756 INFO L225 Difference]: With dead ends: 47 [2022-04-27 22:46:45,756 INFO L226 Difference]: Without dead ends: 23 [2022-04-27 22:46:45,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-27 22:46:45,763 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 22:46:45,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 22:46:45,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-27 22:46:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-27 22:46:45,787 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 22:46:45,787 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-27 22:46:45,788 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-27 22:46:45,788 INFO L87 Difference]: Start difference. First operand 23 states. Second operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-27 22:46:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 22:46:45,796 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-04-27 22:46:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-04-27 22:46:45,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 22:46:45,797 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 22:46:45,797 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 23 states. [2022-04-27 22:46:45,798 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 23 states. [2022-04-27 22:46:45,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 22:46:45,801 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-04-27 22:46:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-04-27 22:46:45,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 22:46:45,807 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 22:46:45,808 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 22:46:45,808 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 22:46:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-27 22:46:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-04-27 22:46:45,810 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2022-04-27 22:46:45,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 22:46:45,810 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-04-27 22:46:45,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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) [2022-04-27 22:46:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-04-27 22:46:45,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-27 22:46:45,811 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 22:46:45,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 22:46:45,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-27 22:46:46,012 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 [2022-04-27 22:46:46,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 22:46:46,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 22:46:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash 726352862, now seen corresponding path program 1 times [2022-04-27 22:46:46,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 22:46:46,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209338565] [2022-04-27 22:46:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 22:46:46,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 22:46:46,033 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 22:46:46,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380563571] [2022-04-27 22:46:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 22:46:46,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 22:46:46,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 22:46:46,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-27 22:46:46,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-27 22:46:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 22:46:46,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-27 22:46:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 22:46:46,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 22:46:46,235 INFO L272 TraceCheckUtils]: 0: Hoare triple {206#true} [56] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,236 INFO L290 TraceCheckUtils]: 1: Hoare triple {206#true} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {206#true} is VALID [2022-04-27 22:46:46,236 INFO L290 TraceCheckUtils]: 2: Hoare triple {206#true} [61] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,236 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {206#true} {206#true} [77] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,236 INFO L272 TraceCheckUtils]: 4: Hoare triple {206#true} [57] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,238 INFO L290 TraceCheckUtils]: 5: Hoare triple {206#true} [60] mainENTRY-->L26-2: Formula: (and (= v_main_~k~0_3 |v_main_#t~nondet4_2|) (= v_main_~c~0_4 0) (= v_main_~y~0_4 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (= v_main_~x~0_4 0) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_4, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {226#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-27 22:46:46,239 INFO L290 TraceCheckUtils]: 6: Hoare triple {226#(and (= main_~x~0 0) (= main_~y~0 0))} [64] L26-2-->L27: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {226#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-27 22:46:46,240 INFO L272 TraceCheckUtils]: 7: Hoare triple {226#(and (= main_~x~0 0) (= main_~y~0 0))} [66] L27-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {206#true} is VALID [2022-04-27 22:46:46,240 INFO L290 TraceCheckUtils]: 8: Hoare triple {206#true} [68] __VERIFIER_assertENTRY-->L10: 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] {206#true} is VALID [2022-04-27 22:46:46,240 INFO L290 TraceCheckUtils]: 9: Hoare triple {206#true} [73] L10-->L10-2: 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[] {206#true} is VALID [2022-04-27 22:46:46,241 INFO L290 TraceCheckUtils]: 10: Hoare triple {206#true} [76] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,241 INFO L284 TraceCheckUtils]: 11: Hoare quadruple {206#true} {226#(and (= main_~x~0 0) (= main_~y~0 0))} [79] __VERIFIER_assertEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {226#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-27 22:46:46,242 INFO L290 TraceCheckUtils]: 12: Hoare triple {226#(and (= main_~x~0 0) (= main_~y~0 0))} [70] L27-1-->L26-2: Formula: (and (= (+ v_main_~x~0_3 v_main_~y~0_2) v_main_~x~0_2) (= v_main_~c~0_2 (+ v_main_~c~0_3 1)) (< v_main_~c~0_3 v_main_~k~0_2) (= v_main_~y~0_2 (+ v_main_~y~0_3 1))) InVars {main_~y~0=v_main_~y~0_3, main_~c~0=v_main_~c~0_3, main_~x~0=v_main_~x~0_3, main_~k~0=v_main_~k~0_2} OutVars{main_~y~0=v_main_~y~0_2, main_~c~0=v_main_~c~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {248#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} is VALID [2022-04-27 22:46:46,242 INFO L290 TraceCheckUtils]: 13: Hoare triple {248#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} [64] L26-2-->L27: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {248#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} is VALID [2022-04-27 22:46:46,243 INFO L272 TraceCheckUtils]: 14: Hoare triple {248#(and (= main_~y~0 1) (= (+ main_~x~0 (* (- 1) main_~y~0)) 0))} [66] L27-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {255#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 22:46:46,243 INFO L290 TraceCheckUtils]: 15: Hoare triple {255#(<= 1 |__VERIFIER_assert_#in~cond|)} [68] __VERIFIER_assertENTRY-->L10: 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] {259#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 22:46:46,244 INFO L290 TraceCheckUtils]: 16: Hoare triple {259#(<= 1 __VERIFIER_assert_~cond)} [72] L10-->L11: 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[] {207#false} is VALID [2022-04-27 22:46:46,244 INFO L290 TraceCheckUtils]: 17: Hoare triple {207#false} [74] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#false} is VALID [2022-04-27 22:46:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 22:46:46,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-27 22:46:46,370 INFO L290 TraceCheckUtils]: 17: Hoare triple {207#false} [74] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#false} is VALID [2022-04-27 22:46:46,370 INFO L290 TraceCheckUtils]: 16: Hoare triple {259#(<= 1 __VERIFIER_assert_~cond)} [72] L10-->L11: 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[] {207#false} is VALID [2022-04-27 22:46:46,370 INFO L290 TraceCheckUtils]: 15: Hoare triple {255#(<= 1 |__VERIFIER_assert_#in~cond|)} [68] __VERIFIER_assertENTRY-->L10: 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] {259#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 22:46:46,371 INFO L272 TraceCheckUtils]: 14: Hoare triple {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [66] L27-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {255#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 22:46:46,372 INFO L290 TraceCheckUtils]: 13: Hoare triple {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [64] L26-2-->L27: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-27 22:46:46,373 INFO L290 TraceCheckUtils]: 12: Hoare triple {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [70] L27-1-->L26-2: Formula: (and (= (+ v_main_~x~0_3 v_main_~y~0_2) v_main_~x~0_2) (= v_main_~c~0_2 (+ v_main_~c~0_3 1)) (< v_main_~c~0_3 v_main_~k~0_2) (= v_main_~y~0_2 (+ v_main_~y~0_3 1))) InVars {main_~y~0=v_main_~y~0_3, main_~c~0=v_main_~c~0_3, main_~x~0=v_main_~x~0_3, main_~k~0=v_main_~k~0_2} OutVars{main_~y~0=v_main_~y~0_2, main_~c~0=v_main_~c~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-27 22:46:46,374 INFO L284 TraceCheckUtils]: 11: Hoare quadruple {206#true} {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [79] __VERIFIER_assertEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-27 22:46:46,374 INFO L290 TraceCheckUtils]: 10: Hoare triple {206#true} [76] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,374 INFO L290 TraceCheckUtils]: 9: Hoare triple {206#true} [73] L10-->L10-2: 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[] {206#true} is VALID [2022-04-27 22:46:46,374 INFO L290 TraceCheckUtils]: 8: Hoare triple {206#true} [68] __VERIFIER_assertENTRY-->L10: 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] {206#true} is VALID [2022-04-27 22:46:46,375 INFO L272 TraceCheckUtils]: 7: Hoare triple {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [66] L27-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ v_main_~y~0_8 (* (- 2) v_main_~x~0_8) (* v_main_~y~0_8 v_main_~y~0_8)) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_8, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {206#true} is VALID [2022-04-27 22:46:46,376 INFO L290 TraceCheckUtils]: 6: Hoare triple {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} [64] L26-2-->L27: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-27 22:46:46,376 INFO L290 TraceCheckUtils]: 5: Hoare triple {206#true} [60] mainENTRY-->L26-2: Formula: (and (= v_main_~k~0_3 |v_main_#t~nondet4_2|) (= v_main_~c~0_4 0) (= v_main_~y~0_4 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (= v_main_~x~0_4 0) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_4, main_~y~0=v_main_~y~0_4, main_~x~0=v_main_~x~0_4, main_~k~0=v_main_~k~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {275#(= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0)))} is VALID [2022-04-27 22:46:46,377 INFO L272 TraceCheckUtils]: 4: Hoare triple {206#true} [57] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,377 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {206#true} {206#true} [77] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,377 INFO L290 TraceCheckUtils]: 2: Hoare triple {206#true} [61] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,377 INFO L290 TraceCheckUtils]: 1: Hoare triple {206#true} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {206#true} is VALID [2022-04-27 22:46:46,377 INFO L272 TraceCheckUtils]: 0: Hoare triple {206#true} [56] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {206#true} is VALID [2022-04-27 22:46:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-27 22:46:46,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 22:46:46,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209338565] [2022-04-27 22:46:46,378 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 22:46:46,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380563571] [2022-04-27 22:46:46,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380563571] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-27 22:46:46,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-27 22:46:46,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-27 22:46:46,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969739028] [2022-04-27 22:46:46,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 22:46:46,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-27 22:46:46,380 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 22:46:46,380 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 22:46:46,392 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 22:46:46,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 22:46:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 22:46:46,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 22:46:46,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-27 22:46:46,394 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 22:46:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 22:46:46,445 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-04-27 22:46:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 22:46:46,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-27 22:46:46,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 22:46:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 22:46:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-04-27 22:46:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 22:46:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-04-27 22:46:46,450 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 17 transitions. [2022-04-27 22:46:46,462 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 22:46:46,463 INFO L225 Difference]: With dead ends: 23 [2022-04-27 22:46:46,463 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 22:46:46,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-27 22:46:46,467 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 22:46:46,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 22:46:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 22:46:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 22:46:46,469 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 22:46:46,469 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) [2022-04-27 22:46:46,469 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) [2022-04-27 22:46:46,469 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) [2022-04-27 22:46:46,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 22:46:46,470 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 22:46:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 22:46:46,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 22:46:46,470 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 22:46:46,470 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. [2022-04-27 22:46:46,470 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. [2022-04-27 22:46:46,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 22:46:46,470 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 22:46:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 22:46:46,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 22:46:46,470 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 22:46:46,470 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 22:46:46,470 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 22:46:46,471 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) [2022-04-27 22:46:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 22:46:46,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-04-27 22:46:46,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 22:46:46,471 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 22:46:46,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 22:46:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 22:46:46,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 22:46:46,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 22:46:46,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-27 22:46:46,690 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 [2022-04-27 22:46:46,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-27 22:46:46,713 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2022-04-27 22:46:46,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-27 22:46:46,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-27 22:46:46,713 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-27 22:46:46,713 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-27 22:46:46,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 17 39) the Hoare annotation is: true [2022-04-27 22:46:46,714 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 35) the Hoare annotation is: (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) [2022-04-27 22:46:46,714 INFO L895 garLoopResultBuilder]: At program point L26-3(lines 26 35) the Hoare annotation is: (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) [2022-04-27 22:46:46,714 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (= (* main_~x~0 2) (+ main_~y~0 (* main_~y~0 main_~y~0))) [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 26 35) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 17 39) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 17 39) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-04-27 22:46:46,714 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2022-04-27 22:46:46,715 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-04-27 22:46:46,715 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2022-04-27 22:46:46,717 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 22:46:46,718 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 22:46:46,721 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 22:46:46,722 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-27 22:46:46,722 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L10-2 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 22:46:46,723 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 22:46:46,723 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-27 22:46:46,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 10:46:46 BasicIcfg [2022-04-27 22:46:46,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 22:46:46,731 INFO L158 Benchmark]: Toolchain (without parser) took 2105.58ms. Allocated memory was 192.9MB in the beginning and 233.8MB in the end (delta: 40.9MB). Free memory was 133.4MB in the beginning and 177.4MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 22:46:46,731 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 192.9MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 22:46:46,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.84ms. Allocated memory was 192.9MB in the beginning and 233.8MB in the end (delta: 40.9MB). Free memory was 166.0MB in the beginning and 204.7MB in the end (delta: -38.7MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. [2022-04-27 22:46:46,732 INFO L158 Benchmark]: Boogie Preprocessor took 19.99ms. Allocated memory is still 233.8MB. Free memory was 204.7MB in the beginning and 203.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 22:46:46,732 INFO L158 Benchmark]: RCFGBuilder took 203.95ms. Allocated memory is still 233.8MB. Free memory was 203.1MB in the beginning and 192.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 22:46:46,733 INFO L158 Benchmark]: IcfgTransformer took 34.60ms. Allocated memory is still 233.8MB. Free memory was 192.6MB in the beginning and 191.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 22:46:46,733 INFO L158 Benchmark]: TraceAbstraction took 1664.93ms. Allocated memory is still 233.8MB. Free memory was 191.1MB in the beginning and 177.4MB in the end (delta: 13.6MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2022-04-27 22:46:46,734 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 0.10ms. Allocated memory is still 192.9MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.84ms. Allocated memory was 192.9MB in the beginning and 233.8MB in the end (delta: 40.9MB). Free memory was 166.0MB in the beginning and 204.7MB in the end (delta: -38.7MB). Peak memory consumption was 6.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.99ms. Allocated memory is still 233.8MB. Free memory was 204.7MB in the beginning and 203.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 203.95ms. Allocated memory is still 233.8MB. Free memory was 203.1MB in the beginning and 192.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 34.60ms. Allocated memory is still 233.8MB. Free memory was 192.6MB in the beginning and 191.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1664.93ms. Allocated memory is still 233.8MB. Free memory was 191.1MB in the beginning and 177.4MB in the end (delta: 13.6MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 30 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 19 NumberOfFragments, 32 HoareAnnotationTreeSize, 13 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 2 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: x * 2 == y + y * y RESULT: Ultimate proved your program to be correct! [2022-04-27 22:46:46,758 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...