/usr/bin/java -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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_while_int.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:20:59,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:20:59,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:20:59,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:20:59,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:20:59,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:20:59,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:20:59,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:20:59,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:20:59,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:20:59,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:20:59,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:20:59,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:20:59,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:20:59,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:20:59,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:20:59,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:20:59,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:20:59,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:20:59,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:20:59,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:20:59,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:20:59,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:20:59,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:20:59,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 05:20:59,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:20:59,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:20:59,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:20:59,947 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:20:59,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:20:59,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:20:59,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:20:59,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:20:59,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:20:59,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:20:59,964 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:20:59,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:20:59,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:20:59,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:20:59,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:20:59,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:20:59,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:20:59,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:20:59,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:20:59,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:20:59,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:20:59,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:20:59,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:20:59,968 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:21:00,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:21:00,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:21:00,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:21:00,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:21:00,182 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:21:00,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i [2022-01-11 05:21:00,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9550d6a38/9a1534da300a41a7ac23449a7ef98bd4/FLAGf50980556 [2022-01-11 05:21:00,597 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:21:00,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.i [2022-01-11 05:21:00,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9550d6a38/9a1534da300a41a7ac23449a7ef98bd4/FLAGf50980556 [2022-01-11 05:21:00,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9550d6a38/9a1534da300a41a7ac23449a7ef98bd4 [2022-01-11 05:21:00,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:21:00,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:21:00,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:21:00,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:21:00,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:21:00,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6763c7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00, skipping insertion in model container [2022-01-11 05:21:00,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:21:00,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:21:00,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.i[296,309] [2022-01-11 05:21:00,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:21:00,788 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:21:00,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.i[296,309] [2022-01-11 05:21:00,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:21:00,813 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:21:00,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00 WrapperNode [2022-01-11 05:21:00,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:21:00,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:21:00,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:21:00,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:21:00,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,836 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2022-01-11 05:21:00,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:21:00,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:21:00,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:21:00,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:21:00,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:21:00,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:21:00,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:21:00,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:21:00,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (1/1) ... [2022-01-11 05:21:00,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:21:00,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:21:00,908 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) [2022-01-11 05:21:00,913 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 [2022-01-11 05:21:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:21:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:21:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:21:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:21:00,981 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:21:00,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:21:01,046 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:21:01,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:21:01,049 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:21:01,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:21:01 BoogieIcfgContainer [2022-01-11 05:21:01,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:21:01,051 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:21:01,051 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:21:01,052 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:21:01,053 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:21:01" (1/1) ... [2022-01-11 05:21:01,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:21:01 BasicIcfg [2022-01-11 05:21:01,087 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:21:01,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:21:01,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:21:01,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:21:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:21:00" (1/4) ... [2022-01-11 05:21:01,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe9e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:21:01, skipping insertion in model container [2022-01-11 05:21:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:21:00" (2/4) ... [2022-01-11 05:21:01,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe9e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:21:01, skipping insertion in model container [2022-01-11 05:21:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:21:01" (3/4) ... [2022-01-11 05:21:01,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe9e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:21:01, skipping insertion in model container [2022-01-11 05:21:01,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:21:01" (4/4) ... [2022-01-11 05:21:01,091 INFO L111 eAbstractionObserver]: Analyzing ICFG test_while_int.iTransformedIcfg [2022-01-11 05:21:01,094 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:21:01,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:21:01,120 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:21:01,127 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:21:01,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:21:01,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-01-11 05:21:01,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-11 05:21:01,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:21:01,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-11 05:21:01,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:21:01,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:21:01,147 INFO L85 PathProgramCache]: Analyzing trace with hash 58246468, now seen corresponding path program 1 times [2022-01-11 05:21:01,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:21:01,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704280627] [2022-01-11 05:21:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:21:01,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:21:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:21:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:21:01,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:21:01,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704280627] [2022-01-11 05:21:01,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704280627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:21:01,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:21:01,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:21:01,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675687562] [2022-01-11 05:21:01,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:21:01,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:21:01,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:21:01,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:21:01,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:21:01,365 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-01-11 05:21:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:21:01,405 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2022-01-11 05:21:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:21:01,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2022-01-11 05:21:01,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:21:01,418 INFO L225 Difference]: With dead ends: 23 [2022-01-11 05:21:01,418 INFO L226 Difference]: Without dead ends: 9 [2022-01-11 05:21:01,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:21:01,427 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:21:01,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:21:01,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-11 05:21:01,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-11 05:21:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-01-11 05:21:01,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-11 05:21:01,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-01-11 05:21:01,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:21:01,450 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-11 05:21:01,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-01-11 05:21:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-11 05:21:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-11 05:21:01,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:21:01,451 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-01-11 05:21:01,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:21:01,452 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:21:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:21:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash 52822146, now seen corresponding path program 1 times [2022-01-11 05:21:01,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:21:01,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706872715] [2022-01-11 05:21:01,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:21:01,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:21:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:21:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:21:01,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:21:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706872715] [2022-01-11 05:21:01,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706872715] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:21:01,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166226343] [2022-01-11 05:21:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:21:01,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:21:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:21:01,589 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) [2022-01-11 05:21:01,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 05:21:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:21:01,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-11 05:21:01,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:21:01,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:21:01,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 05:21:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:21:01,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166226343] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 05:21:01,932 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 05:21:01,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-01-11 05:21:01,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344174097] [2022-01-11 05:21:01,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 05:21:01,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:21:01,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:21:01,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:21:01,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:21:01,936 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-01-11 05:21:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:21:02,003 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-01-11 05:21:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:21:02,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) Word has length 8 [2022-01-11 05:21:02,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:21:02,004 INFO L225 Difference]: With dead ends: 22 [2022-01-11 05:21:02,004 INFO L226 Difference]: Without dead ends: 20 [2022-01-11 05:21:02,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:21:02,007 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:21:02,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:21:02,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-11 05:21:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-01-11 05:21:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-01-11 05:21:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-01-11 05:21:02,017 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2022-01-11 05:21:02,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:21:02,017 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-01-11 05:21:02,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-01-11 05:21:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-01-11 05:21:02,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 05:21:02,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:21:02,018 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-01-11 05:21:02,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 05:21:02,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:21:02,219 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:21:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:21:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1665602692, now seen corresponding path program 2 times [2022-01-11 05:21:02,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:21:02,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828189686] [2022-01-11 05:21:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:21:02,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:21:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:21:02,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 05:21:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:21:02,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 05:21:02,286 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 05:21:02,286 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 05:21:02,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:21:02,292 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-01-11 05:21:02,294 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:21:02,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:21:02 BasicIcfg [2022-01-11 05:21:02,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:21:02,320 INFO L158 Benchmark]: Toolchain (without parser) took 1707.61ms. Allocated memory was 198.2MB in the beginning and 242.2MB in the end (delta: 44.0MB). Free memory was 145.4MB in the beginning and 124.3MB in the end (delta: 21.1MB). Peak memory consumption was 64.7MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,320 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:21:02,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.37ms. Allocated memory was 198.2MB in the beginning and 242.2MB in the end (delta: 44.0MB). Free memory was 145.2MB in the beginning and 218.1MB in the end (delta: -72.9MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.68ms. Allocated memory is still 242.2MB. Free memory was 218.1MB in the beginning and 217.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,326 INFO L158 Benchmark]: Boogie Preprocessor took 18.76ms. Allocated memory is still 242.2MB. Free memory was 217.1MB in the beginning and 216.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,326 INFO L158 Benchmark]: RCFGBuilder took 193.74ms. Allocated memory is still 242.2MB. Free memory was 216.0MB in the beginning and 205.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,327 INFO L158 Benchmark]: IcfgTransformer took 35.87ms. Allocated memory is still 242.2MB. Free memory was 205.5MB in the beginning and 202.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,327 INFO L158 Benchmark]: TraceAbstraction took 1231.89ms. Allocated memory is still 242.2MB. Free memory was 202.4MB in the beginning and 124.3MB in the end (delta: 78.1MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2022-01-11 05:21:02,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.37ms. Allocated memory was 198.2MB in the beginning and 242.2MB in the end (delta: 44.0MB). Free memory was 145.2MB in the beginning and 218.1MB in the end (delta: -72.9MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.68ms. Allocated memory is still 242.2MB. Free memory was 218.1MB in the beginning and 217.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.76ms. Allocated memory is still 242.2MB. Free memory was 217.1MB in the beginning and 216.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.74ms. Allocated memory is still 242.2MB. Free memory was 216.0MB in the beginning and 205.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 35.87ms. Allocated memory is still 242.2MB. Free memory was 205.5MB in the beginning and 202.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1231.89ms. Allocated memory is still 242.2MB. Free memory was 202.4MB in the beginning and 124.3MB in the end (delta: 78.1MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int i=0; VAL [i=0] [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () VAL [\old(b)=1, b=1] [L31] RET check_error(i!=3) [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () VAL [\old(b)=1, b=1] [L31] RET check_error(i!=3) [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () [L20] CALL __blast_assert () [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 16 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 2 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 05:21:02,359 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...