/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ss4f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 01:53:59,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 01:53:59,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 01:53:59,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 01:53:59,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 01:53:59,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 01:53:59,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 01:53:59,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 01:53:59,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 01:53:59,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 01:53:59,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 01:53:59,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 01:53:59,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 01:53:59,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 01:53:59,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 01:53:59,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 01:53:59,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 01:53:59,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 01:53:59,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 01:53:59,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 01:53:59,156 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 [2022-01-31 01:53:59,178 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 01:53:59,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 01:53:59,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-31 01:53:59,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-31 01:53:59,180 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-31 01:53:59,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-31 01:53:59,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-31 01:53:59,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-31 01:53:59,182 INFO L138 SettingsManager]: * Use SBE=true [2022-01-31 01:53:59,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 01:53:59,183 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 01:53:59,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 01:53:59,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 01:53:59,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 01:53:59,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 01:53:59,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 01:53:59,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 01:53:59,184 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 01:53:59,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 01:53:59,184 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 01:53:59,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 01:53:59,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 01:53:59,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 01:53:59,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 01:53:59,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 01:53:59,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 01:53:59,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-31 01:53:59,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-31 01:53:59,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 01:53:59,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-31 01:53:59,187 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-31 01:53:59,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-31 01:53:59,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 01:53:59,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 01:53:59,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 01:53:59,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 01:53:59,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 01:53:59,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 01:53:59,476 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 01:53:59,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss4f.c [2022-01-31 01:53:59,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e38fed3/44eac587d1954d3795ce0724f880ae70/FLAG8a170e9a4 [2022-01-31 01:54:00,060 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 01:54:00,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss4f.c [2022-01-31 01:54:00,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e38fed3/44eac587d1954d3795ce0724f880ae70/FLAG8a170e9a4 [2022-01-31 01:54:00,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e38fed3/44eac587d1954d3795ce0724f880ae70 [2022-01-31 01:54:00,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 01:54:00,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 01:54:00,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 01:54:00,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 01:54:00,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 01:54:00,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12636c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00, skipping insertion in model container [2022-01-31 01:54:00,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 01:54:00,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 01:54:00,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss4f.c[587,600] [2022-01-31 01:54:00,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 01:54:00,731 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 01:54:00,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss4f.c[587,600] [2022-01-31 01:54:00,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 01:54:00,764 INFO L208 MainTranslator]: Completed translation [2022-01-31 01:54:00,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00 WrapperNode [2022-01-31 01:54:00,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 01:54:00,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 01:54:00,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 01:54:00,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 01:54:00,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 01:54:00,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 01:54:00,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 01:54:00,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 01:54:00,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (1/1) ... [2022-01-31 01:54:00,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 01:54:00,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 01:54:00,848 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) [2022-01-31 01:54:00,851 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 [2022-01-31 01:54:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 01:54:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 01:54:00,883 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 01:54:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 01:54:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 01:54:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 01:54:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 01:54:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 01:54:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 01:54:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 01:54:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 01:54:00,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 01:54:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 01:54:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 01:54:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 01:54:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 01:54:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 01:54:00,947 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 01:54:00,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 01:54:01,148 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 01:54:01,154 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 01:54:01,154 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-31 01:54:01,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:54:01 BoogieIcfgContainer [2022-01-31 01:54:01,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 01:54:01,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 01:54:01,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 01:54:01,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 01:54:01,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 01:54:00" (1/3) ... [2022-01-31 01:54:01,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c11b86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 01:54:01, skipping insertion in model container [2022-01-31 01:54:01,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:54:00" (2/3) ... [2022-01-31 01:54:01,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c11b86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 01:54:01, skipping insertion in model container [2022-01-31 01:54:01,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:54:01" (3/3) ... [2022-01-31 01:54:01,192 INFO L111 eAbstractionObserver]: Analyzing ICFG ss4f.c [2022-01-31 01:54:01,197 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-31 01:54:01,198 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 01:54:01,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 01:54:01,303 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 [2022-01-31 01:54:01,304 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 01:54:01,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 01:54:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-31 01:54:01,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 01:54:01,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 01:54:01,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 01:54:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 01:54:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1106110167, now seen corresponding path program 1 times [2022-01-31 01:54:01,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 01:54:01,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594465431] [2022-01-31 01:54:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:54:01,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 01:54:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:54:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 01:54:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:54:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 01:54:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:54:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 01:54:01,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 01:54:01,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594465431] [2022-01-31 01:54:01,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594465431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 01:54:01,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 01:54:01,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 01:54:01,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162349713] [2022-01-31 01:54:01,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 01:54:01,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 01:54:01,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 01:54:01,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 01:54:01,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 01:54:01,678 INFO L87 Difference]: Start difference. First operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-01-31 01:54:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 01:54:01,786 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2022-01-31 01:54:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 01:54:01,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 25 [2022-01-31 01:54:01,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 01:54:01,800 INFO L225 Difference]: With dead ends: 64 [2022-01-31 01:54:01,801 INFO L226 Difference]: Without dead ends: 30 [2022-01-31 01:54:01,804 INFO L932 BasicCegarLoop]: 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 [2022-01-31 01:54:01,808 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 01:54:01,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 45 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 01:54:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-31 01:54:01,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-01-31 01:54:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 01:54:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-01-31 01:54:01,854 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2022-01-31 01:54:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 01:54:01,855 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-01-31 01:54:01,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-01-31 01:54:01,857 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-01-31 01:54:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-31 01:54:01,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 01:54:01,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 01:54:01,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 01:54:01,860 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 01:54:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 01:54:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash 85041813, now seen corresponding path program 1 times [2022-01-31 01:54:01,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 01:54:01,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080364924] [2022-01-31 01:54:01,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:54:01,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 01:54:01,921 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 01:54:01,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534494114] [2022-01-31 01:54:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:54:01,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 01:54:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 01:54:01,929 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) [2022-01-31 01:54:01,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 01:54:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 01:54:02,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 01:54:02,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 01:54:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 01:54:02,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 01:54:02,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 01:54:02,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080364924] [2022-01-31 01:54:02,147 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 01:54:02,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534494114] [2022-01-31 01:54:02,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534494114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 01:54:02,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 01:54:02,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 01:54:02,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999978856] [2022-01-31 01:54:02,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 01:54:02,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 01:54:02,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 01:54:02,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 01:54:02,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-31 01:54:02,151 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 01:54:02,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 01:54:02,205 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2022-01-31 01:54:02,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 01:54:02,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-01-31 01:54:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 01:54:02,207 INFO L225 Difference]: With dead ends: 53 [2022-01-31 01:54:02,207 INFO L226 Difference]: Without dead ends: 38 [2022-01-31 01:54:02,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-31 01:54:02,209 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 01:54:02,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 34 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 01:54:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-31 01:54:02,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2022-01-31 01:54:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 01:54:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-01-31 01:54:02,217 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 25 [2022-01-31 01:54:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 01:54:02,218 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-01-31 01:54:02,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 01:54:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-01-31 01:54:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 01:54:02,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 01:54:02,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 01:54:02,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 01:54:02,445 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 [2022-01-31 01:54:02,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 01:54:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 01:54:02,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1689002269, now seen corresponding path program 1 times [2022-01-31 01:54:02,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 01:54:02,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043662234] [2022-01-31 01:54:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:54:02,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 01:54:02,487 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 01:54:02,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495449432] [2022-01-31 01:54:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 01:54:02,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 01:54:02,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 01:54:02,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 01:54:02,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 01:54:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 01:54:02,568 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 01:54:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 01:54:02,614 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 01:54:02,614 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 01:54:02,615 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 01:54:02,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 01:54:02,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-31 01:54:02,835 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 01:54:02,838 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 01:54:02,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 01:54:02 BoogieIcfgContainer [2022-01-31 01:54:02,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 01:54:02,886 INFO L158 Benchmark]: Toolchain (without parser) took 2352.46ms. Allocated memory was 201.3MB in the beginning and 292.6MB in the end (delta: 91.2MB). Free memory was 144.4MB in the beginning and 193.1MB in the end (delta: -48.7MB). Peak memory consumption was 43.1MB. Max. memory is 8.0GB. [2022-01-31 01:54:02,889 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 160.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 01:54:02,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.34ms. Allocated memory was 201.3MB in the beginning and 292.6MB in the end (delta: 91.2MB). Free memory was 144.1MB in the beginning and 262.8MB in the end (delta: -118.6MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-01-31 01:54:02,895 INFO L158 Benchmark]: Boogie Preprocessor took 45.81ms. Allocated memory is still 292.6MB. Free memory was 262.8MB in the beginning and 261.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 01:54:02,895 INFO L158 Benchmark]: RCFGBuilder took 342.22ms. Allocated memory is still 292.6MB. Free memory was 261.2MB in the beginning and 248.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 01:54:02,895 INFO L158 Benchmark]: TraceAbstraction took 1727.97ms. Allocated memory is still 292.6MB. Free memory was 247.6MB in the beginning and 193.1MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2022-01-31 01:54:02,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 160.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.34ms. Allocated memory was 201.3MB in the beginning and 292.6MB in the end (delta: 91.2MB). Free memory was 144.1MB in the beginning and 262.8MB in the end (delta: -118.6MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.81ms. Allocated memory is still 292.6MB. Free memory was 262.8MB in the beginning and 261.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 342.22ms. Allocated memory is still 292.6MB. Free memory was 261.2MB in the beginning and 248.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1727.97ms. Allocated memory is still 292.6MB. Free memory was 247.6MB in the beginning and 193.1MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=9, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [\old(N)=0, a={-1:0}, i=0, N=1, sum={4:0}] [L32] COND TRUE i