/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 13:20:05,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 13:20:05,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 13:20:05,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 13:20:05,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 13:20:05,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 13:20:05,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 13:20:05,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 13:20:05,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 13:20:05,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 13:20:05,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 13:20:05,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 13:20:05,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 13:20:05,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 13:20:05,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 13:20:05,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 13:20:05,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 13:20:05,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 13:20:05,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 13:20:05,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 13:20:05,786 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 13:20:05,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 13:20:05,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 13:20:05,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 13:20:05,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 13:20:05,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 13:20:05,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-27 13:20:05,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-27 13:20:05,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-27 13:20:05,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-27 13:20:05,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-27 13:20:05,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-27 13:20:05,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-27 13:20:05,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-27 13:20:05,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 13:20:05,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 13:20:05,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 13:20:05,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-04-27 13:20:05,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 13:20:05,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 13:20:05,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-27 13:20:05,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-27 13:20:05,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-27 13:20:05,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-27 13:20:05,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-27 13:20:05,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-27 13:20:05,833 INFO L138 SettingsManager]: * Use SBE=true [2022-04-27 13:20:05,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 13:20:05,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 13:20:05,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 13:20:05,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 13:20:05,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 13:20:05,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 13:20:05,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 13:20:05,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 13:20:05,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 13:20:05,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-27 13:20:05,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-27 13:20:05,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 13:20:06,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 13:20:06,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 13:20:06,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 13:20:06,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 13:20:06,049 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 13:20:06,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound20.c [2022-04-27 13:20:06,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbce35d07/ff935113e5b64fb38384d4733d65847d/FLAG4d3277320 [2022-04-27 13:20:06,408 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 13:20:06,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound20.c [2022-04-27 13:20:06,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbce35d07/ff935113e5b64fb38384d4733d65847d/FLAG4d3277320 [2022-04-27 13:20:06,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbce35d07/ff935113e5b64fb38384d4733d65847d [2022-04-27 13:20:06,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 13:20:06,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-27 13:20:06,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 13:20:06,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 13:20:06,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 13:20:06,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 01:20:06" (1/1) ... [2022-04-27 13:20:06,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cca9e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:06, skipping insertion in model container [2022-04-27 13:20:06,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 01:20:06" (1/1) ... [2022-04-27 13:20:06,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 13:20:06,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 13:20:06,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound20.c[709,722] [2022-04-27 13:20:06,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 13:20:06,996 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 13:20:07,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_valuebound20.c[709,722] [2022-04-27 13:20:07,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 13:20:07,019 INFO L208 MainTranslator]: Completed translation [2022-04-27 13:20:07,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07 WrapperNode [2022-04-27 13:20:07,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 13:20:07,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 13:20:07,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 13:20:07,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 13:20:07,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 13:20:07,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 13:20:07,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 13:20:07,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 13:20:07,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (1/1) ... [2022-04-27 13:20:07,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 13:20:07,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 13:20:07,079 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 13:20:07,084 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 13:20:07,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 13:20:07,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 13:20:07,119 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 13:20:07,119 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 13:20:07,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 13:20:07,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 13:20:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 13:20:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 13:20:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 13:20:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 13:20:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 13:20:07,160 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 13:20:07,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 13:20:07,290 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 13:20:07,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 13:20:07,313 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 13:20:07,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 01:20:07 BoogieIcfgContainer [2022-04-27 13:20:07,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 13:20:07,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 13:20:07,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 13:20:07,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 13:20:07,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 01:20:06" (1/3) ... [2022-04-27 13:20:07,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dec637a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 01:20:07, skipping insertion in model container [2022-04-27 13:20:07,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 01:20:07" (2/3) ... [2022-04-27 13:20:07,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dec637a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 01:20:07, skipping insertion in model container [2022-04-27 13:20:07,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 01:20:07" (3/3) ... [2022-04-27 13:20:07,320 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound20.c [2022-04-27 13:20:07,340 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-27 13:20:07,340 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 13:20:07,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 13:20:07,373 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=PETRI_NET, 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@48391d41, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@65219564 [2022-04-27 13:20:07,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 13:20:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 13:20:07,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-27 13:20:07,400 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 13:20:07,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 13:20:07,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 13:20:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 13:20:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash 326851384, now seen corresponding path program 1 times [2022-04-27 13:20:07,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 13:20:07,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963373024] [2022-04-27 13:20:07,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:07,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 13:20:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 13:20:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:07,580 INFO L290 TraceCheckUtils]: 0: Hoare triple {43#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {34#true} is VALID [2022-04-27 13:20:07,580 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#true} assume true; {34#true} is VALID [2022-04-27 13:20:07,581 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {34#true} {34#true} #69#return; {34#true} is VALID [2022-04-27 13:20:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-27 13:20:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 13:20:07,592 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#true} ~cond := #in~cond; {34#true} is VALID [2022-04-27 13:20:07,592 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#true} assume 0 == ~cond;assume false; {35#false} is VALID [2022-04-27 13:20:07,593 INFO L290 TraceCheckUtils]: 2: Hoare triple {35#false} assume true; {35#false} is VALID [2022-04-27 13:20:07,593 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {35#false} {34#true} #55#return; {35#false} is VALID [2022-04-27 13:20:07,596 INFO L272 TraceCheckUtils]: 0: Hoare triple {34#true} call ULTIMATE.init(); {43#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 13:20:07,596 INFO L290 TraceCheckUtils]: 1: Hoare triple {43#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {34#true} is VALID [2022-04-27 13:20:07,596 INFO L290 TraceCheckUtils]: 2: Hoare triple {34#true} assume true; {34#true} is VALID [2022-04-27 13:20:07,596 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {34#true} {34#true} #69#return; {34#true} is VALID [2022-04-27 13:20:07,596 INFO L272 TraceCheckUtils]: 4: Hoare triple {34#true} call #t~ret5 := main(); {34#true} is VALID [2022-04-27 13:20:07,597 INFO L290 TraceCheckUtils]: 5: Hoare triple {34#true} havoc ~r~0;havoc ~a~0;havoc ~x~0;havoc ~s~0;~a~0 := #t~nondet4;havoc #t~nondet4; {34#true} is VALID [2022-04-27 13:20:07,597 INFO L272 TraceCheckUtils]: 6: Hoare triple {34#true} call assume_abort_if_not((if ~someBinaryDOUBLEComparisonOperation(~a~0, ~convertINTToDOUBLE(0)) && ~someBinaryDOUBLEComparisonOperation(~a~0, ~convertINTToDOUBLE(20)) then 1 else 0)); {34#true} is VALID [2022-04-27 13:20:07,597 INFO L290 TraceCheckUtils]: 7: Hoare triple {34#true} ~cond := #in~cond; {34#true} is VALID [2022-04-27 13:20:07,597 INFO L290 TraceCheckUtils]: 8: Hoare triple {34#true} assume 0 == ~cond;assume false; {35#false} is VALID [2022-04-27 13:20:07,597 INFO L290 TraceCheckUtils]: 9: Hoare triple {35#false} assume true; {35#false} is VALID [2022-04-27 13:20:07,598 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {35#false} {34#true} #55#return; {35#false} is VALID [2022-04-27 13:20:07,598 INFO L290 TraceCheckUtils]: 11: Hoare triple {35#false} ~x~0 := ~a~0;~s~0 := 3.25;~r~0 := 1; {35#false} is VALID [2022-04-27 13:20:07,598 INFO L290 TraceCheckUtils]: 12: Hoare triple {35#false} assume false; {35#false} is VALID [2022-04-27 13:20:07,598 INFO L272 TraceCheckUtils]: 13: Hoare triple {35#false} call __VERIFIER_assert((if 1 == ~convertDOUBLEToINT(~someBinaryArithmeticDOUBLEoperation(~convertINTToDOUBLE(4), ~s~0)) - 12 * ~r~0 * ~r~0 then 1 else 0)); {35#false} is VALID [2022-04-27 13:20:07,598 INFO L290 TraceCheckUtils]: 14: Hoare triple {35#false} ~cond := #in~cond; {35#false} is VALID [2022-04-27 13:20:07,599 INFO L290 TraceCheckUtils]: 15: Hoare triple {35#false} assume 0 == ~cond; {35#false} is VALID [2022-04-27 13:20:07,599 INFO L290 TraceCheckUtils]: 16: Hoare triple {35#false} assume !false; {35#false} is VALID [2022-04-27 13:20:07,599 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 13:20:07,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 13:20:07,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963373024] [2022-04-27 13:20:07,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963373024] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 13:20:07,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 13:20:07,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 13:20:07,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987871929] [2022-04-27 13:20:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 13:20:07,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-27 13:20:07,609 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 13:20:07,611 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 13:20:07,635 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 13:20:07,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 13:20:07,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 13:20:07,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 13:20:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 13:20:07,657 INFO L87 Difference]: Start difference. First operand has 31 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 13:20:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:07,796 INFO L93 Difference]: Finished difference Result 53 states and 76 transitions. [2022-04-27 13:20:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 13:20:07,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-27 13:20:07,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 13:20:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 13:20:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2022-04-27 13:20:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 13:20:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2022-04-27 13:20:07,817 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 76 transitions. [2022-04-27 13:20:07,907 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 13:20:07,914 INFO L225 Difference]: With dead ends: 53 [2022-04-27 13:20:07,914 INFO L226 Difference]: Without dead ends: 26 [2022-04-27 13:20:07,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 13:20:07,922 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 13:20:07,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 13:20:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-27 13:20:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-04-27 13:20:07,947 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 13:20:07,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:07,948 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:07,949 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:07,958 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-04-27 13:20:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-04-27 13:20:07,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:07,958 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:07,959 INFO L74 IsIncluded]: Start isIncluded. First operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 26 states. [2022-04-27 13:20:07,960 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand 26 states. [2022-04-27 13:20:07,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 13:20:07,963 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-04-27 13:20:07,963 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-04-27 13:20:07,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 13:20:07,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 13:20:07,970 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 13:20:07,970 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 13:20:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-04-27 13:20:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-04-27 13:20:07,976 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2022-04-27 13:20:07,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 13:20:07,977 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-04-27 13:20:07,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 13:20:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-04-27 13:20:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-27 13:20:07,978 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 13:20:07,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 13:20:07,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 13:20:07,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 13:20:07,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 13:20:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1008578050, now seen corresponding path program 1 times [2022-04-27 13:20:07,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 13:20:07,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37269475] [2022-04-27 13:20:07,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:07,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 13:20:07,999 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 13:20:07,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294484697] [2022-04-27 13:20:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 13:20:07,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 13:20:08,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 13:20:08,012 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 13:20:08,013 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 13:20:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 13:20:08,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 13:20:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 13:20:08,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 13:20:08,065 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 13:20:08,066 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 13:20:08,086 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 13:20:08,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 13:20:08,286 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 13:20:08,288 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 13:20:08,306 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-27 13:20:08,307 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-04-27 13:20:08,309 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:08,310 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L34-1 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2022-04-27 13:20:08,311 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2022-04-27 13:20:08,312 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-04-27 13:20:08,312 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-04-27 13:20:08,312 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-04-27 13:20:08,312 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-27 13:20:08,312 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-27 13:20:08,312 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-27 13:20:08,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 01:20:08 BoogieIcfgContainer [2022-04-27 13:20:08,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 13:20:08,316 INFO L158 Benchmark]: Toolchain (without parser) took 1464.90ms. Allocated memory was 201.3MB in the beginning and 262.1MB in the end (delta: 60.8MB). Free memory was 150.4MB in the beginning and 230.7MB in the end (delta: -80.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 13:20:08,317 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 167.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 13:20:08,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.02ms. Allocated memory is still 201.3MB. Free memory was 150.3MB in the beginning and 175.1MB in the end (delta: -24.9MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2022-04-27 13:20:08,320 INFO L158 Benchmark]: Boogie Preprocessor took 36.23ms. Allocated memory is still 201.3MB. Free memory was 175.1MB in the beginning and 173.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 13:20:08,321 INFO L158 Benchmark]: RCFGBuilder took 258.12ms. Allocated memory is still 201.3MB. Free memory was 173.4MB in the beginning and 162.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 13:20:08,321 INFO L158 Benchmark]: TraceAbstraction took 996.99ms. Allocated memory was 201.3MB in the beginning and 262.1MB in the end (delta: 60.8MB). Free memory was 162.3MB in the beginning and 230.7MB in the end (delta: -68.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 13:20:08,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 167.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.02ms. Allocated memory is still 201.3MB. Free memory was 150.3MB in the beginning and 175.1MB in the end (delta: -24.9MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.23ms. Allocated memory is still 201.3MB. Free memory was 175.1MB in the beginning and 173.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 258.12ms. Allocated memory is still 201.3MB. Free memory was 173.4MB in the beginning and 162.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 996.99ms. Allocated memory was 201.3MB in the beginning and 262.1MB in the end (delta: 60.8MB). Free memory was 162.3MB in the beginning and 230.7MB in the end (delta: -68.4MB). 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 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=20) VAL [\old(cond)=1] [L14] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(a>=0 && a<=20) VAL [a=2] [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, r=1, s=13/4, x=2] [L33] COND TRUE 1 VAL [a=2, r=1, s=13/4, x=2] [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=0] [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L19] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 29 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-27 13:20:08,350 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...