/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ifncompf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:46:27,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:46:27,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:46:28,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:46:28,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:46:28,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:46:28,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:46:28,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:46:28,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:46:28,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:46:28,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:46:28,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:46:28,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:46:28,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:46:28,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:46:28,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:46:28,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:46:28,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:46:28,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:46:28,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:46:28,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:46:28,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:46:28,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:46:28,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:46:28,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 11:46:28,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 11:46:28,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 11:46:28,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 11:46:28,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 11:46:28,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 11:46:28,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 11:46:28,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 11:46:28,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 11:46:28,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 11:46:28,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 11:46:28,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 11:46:28,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 11:46:28,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 11:46:28,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:46:28,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:46:28,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:46:28,064 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 [2020-07-20 11:46:28,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:46:28,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:46:28,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:46:28,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:46:28,080 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:46:28,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:46:28,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:46:28,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:46:28,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:46:28,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:46:28,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:46:28,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:46:28,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:46:28,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:46:28,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:46:28,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:46:28,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:46:28,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:46:28,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:46:28,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:46:28,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:46:28,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:46:28,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:46:28,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:46:28,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:46:28,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:46:28,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:28,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:46:28,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:46:28,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:46:28,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:46:28,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:46:28,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:46:28,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:46:28,383 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:46:28,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifncompf.c [2020-07-20 11:46:28,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575eb4fd1/1a2206ce42064103be1e0a0bf1ef9eb2/FLAG34f19ee7a [2020-07-20 11:46:28,891 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:46:28,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncompf.c [2020-07-20 11:46:28,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575eb4fd1/1a2206ce42064103be1e0a0bf1ef9eb2/FLAG34f19ee7a [2020-07-20 11:46:29,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575eb4fd1/1a2206ce42064103be1e0a0bf1ef9eb2 [2020-07-20 11:46:29,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:46:29,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:46:29,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:46:29,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:46:29,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:46:29,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e161a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29, skipping insertion in model container [2020-07-20 11:46:29,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:46:29,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:46:29,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:46:29,501 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:46:29,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:46:29,544 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:46:29,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29 WrapperNode [2020-07-20 11:46:29,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:46:29,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:46:29,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:46:29,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:46:29,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... [2020-07-20 11:46:29,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:46:29,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:46:29,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:46:29,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:46:29,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:46:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:46:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:46:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 11:46:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 11:46:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:46:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:46:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 11:46:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 11:46:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 11:46:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:46:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 11:46:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:46:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 11:46:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 11:46:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 11:46:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:46:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:46:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 11:46:30,080 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:46:30,081 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 11:46:30,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:46:30 BoogieIcfgContainer [2020-07-20 11:46:30,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:46:30,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:46:30,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:46:30,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:46:30,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:46:29" (1/3) ... [2020-07-20 11:46:30,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb8d26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:46:30, skipping insertion in model container [2020-07-20 11:46:30,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:46:29" (2/3) ... [2020-07-20 11:46:30,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb8d26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:46:30, skipping insertion in model container [2020-07-20 11:46:30,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:46:30" (3/3) ... [2020-07-20 11:46:30,098 INFO L109 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2020-07-20 11:46:30,113 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:46:30,122 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:46:30,143 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:46:30,181 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:46:30,182 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:46:30,182 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:46:30,182 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:46:30,182 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:46:30,182 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:46:30,183 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:46:30,183 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:46:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-20 11:46:30,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-20 11:46:30,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:46:30,212 INFO L422 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] [2020-07-20 11:46:30,214 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:46:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:46:30,234 INFO L82 PathProgramCache]: Analyzing trace with hash -794599326, now seen corresponding path program 1 times [2020-07-20 11:46:30,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:46:30,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478566577] [2020-07-20 11:46:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:46:30,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 11:46:30,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:46:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:46:30,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:46:30,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478566577] [2020-07-20 11:46:30,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:46:30,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 11:46:30,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405072061] [2020-07-20 11:46:30,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 11:46:30,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:46:30,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 11:46:30,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 11:46:30,405 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-07-20 11:46:30,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:46:30,435 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2020-07-20 11:46:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 11:46:30,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2020-07-20 11:46:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:46:30,446 INFO L225 Difference]: With dead ends: 70 [2020-07-20 11:46:30,447 INFO L226 Difference]: Without dead ends: 35 [2020-07-20 11:46:30,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 11:46:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-20 11:46:30,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-20 11:46:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-20 11:46:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-07-20 11:46:30,497 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 24 [2020-07-20 11:46:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:46:30,498 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-07-20 11:46:30,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 11:46:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2020-07-20 11:46:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-20 11:46:30,500 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:46:30,500 INFO L422 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] [2020-07-20 11:46:30,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:30,716 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:46:30,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:46:30,717 INFO L82 PathProgramCache]: Analyzing trace with hash -544938994, now seen corresponding path program 1 times [2020-07-20 11:46:30,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:46:30,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655290360] [2020-07-20 11:46:30,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:46:30,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 11:46:30,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:46:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:46:30,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:46:30,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655290360] [2020-07-20 11:46:30,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:46:30,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 11:46:30,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111774298] [2020-07-20 11:46:30,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:46:30,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:46:30,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:46:30,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 11:46:30,864 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 4 states. [2020-07-20 11:46:30,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:46:30,999 INFO L93 Difference]: Finished difference Result 67 states and 84 transitions. [2020-07-20 11:46:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:46:31,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-20 11:46:31,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:46:31,003 INFO L225 Difference]: With dead ends: 67 [2020-07-20 11:46:31,004 INFO L226 Difference]: Without dead ends: 48 [2020-07-20 11:46:31,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 11:46:31,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-20 11:46:31,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2020-07-20 11:46:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-20 11:46:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-07-20 11:46:31,019 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 24 [2020-07-20 11:46:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:46:31,020 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-07-20 11:46:31,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:46:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-07-20 11:46:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-20 11:46:31,021 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:46:31,022 INFO L422 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] [2020-07-20 11:46:31,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:31,234 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:46:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:46:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1796917477, now seen corresponding path program 1 times [2020-07-20 11:46:31,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:46:31,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872802357] [2020-07-20 11:46:31,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:46:31,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 11:46:31,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:46:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 11:46:31,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:46:31,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872802357] [2020-07-20 11:46:31,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:46:31,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:46:31,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157546793] [2020-07-20 11:46:31,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:46:31,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:46:31,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:46:31,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:46:31,336 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 3 states. [2020-07-20 11:46:31,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:46:31,404 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-07-20 11:46:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:46:31,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-20 11:46:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:46:31,407 INFO L225 Difference]: With dead ends: 72 [2020-07-20 11:46:31,407 INFO L226 Difference]: Without dead ends: 48 [2020-07-20 11:46:31,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:46:31,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-20 11:46:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2020-07-20 11:46:31,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-20 11:46:31,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-07-20 11:46:31,431 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 33 [2020-07-20 11:46:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:46:31,432 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-07-20 11:46:31,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:46:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-07-20 11:46:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-20 11:46:31,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:46:31,434 INFO L422 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] [2020-07-20 11:46:31,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:31,649 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:46:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:46:31,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1817991449, now seen corresponding path program 1 times [2020-07-20 11:46:31,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:46:31,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637134572] [2020-07-20 11:46:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 11:46:31,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 11:46:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 11:46:31,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 11:46:31,751 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 11:46:31,751 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 11:46:31,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:46:32,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:46:32 BoogieIcfgContainer [2020-07-20 11:46:32,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:46:32,018 INFO L168 Benchmark]: Toolchain (without parser) took 2791.89 ms. Allocated memory was 138.9 MB in the beginning and 233.8 MB in the end (delta: 94.9 MB). Free memory was 103.0 MB in the beginning and 188.1 MB in the end (delta: -85.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:46:32,018 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:46:32,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.08 ms. Allocated memory is still 138.9 MB. Free memory was 102.6 MB in the beginning and 91.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:46:32,020 INFO L168 Benchmark]: Boogie Preprocessor took 180.00 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 91.9 MB in the beginning and 182.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:46:32,021 INFO L168 Benchmark]: RCFGBuilder took 360.79 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 163.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:46:32,023 INFO L168 Benchmark]: TraceAbstraction took 1926.16 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 162.5 MB in the beginning and 188.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:46:32,027 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 319.08 ms. Allocated memory is still 138.9 MB. Free memory was 102.6 MB in the beginning and 91.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.00 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 91.9 MB in the beginning and 182.0 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.79 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 163.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1926.16 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 162.5 MB in the beginning and 188.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=4, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L27] long long *b = malloc(sizeof(long long)*N); [L28] long long *c = malloc(sizeof(long long)*N); [L30] i=0 VAL [\old(N)=0, a={-2:0}, b={-3:0}, c={-1:0}, i=0, malloc(sizeof(long long)*N)={-2:0}, malloc(sizeof(long long)*N)={-3:0}, malloc(sizeof(long long)*N)={-1:0}, N=1] [L30] COND TRUE i