/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -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 [2020-07-21 23:09:06,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 23:09:06,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 23:09:06,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 23:09:06,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 23:09:06,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 23:09:06,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 23:09:06,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 23:09:06,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 23:09:06,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 23:09:06,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 23:09:06,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 23:09:06,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 23:09:06,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 23:09:06,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 23:09:06,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 23:09:06,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 23:09:06,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 23:09:06,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 23:09:06,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 23:09:06,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 23:09:06,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 23:09:06,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 23:09:06,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 23:09:06,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 23:09:06,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 23:09:06,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 23:09:06,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 23:09:06,489 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 [2020-07-21 23:09:06,530 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 23:09:06,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 23:09:06,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 23:09:06,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 23:09:06,532 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 23:09:06,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 23:09:06,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 23:09:06,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 23:09:06,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 23:09:06,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 23:09:06,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 23:09:06,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 23:09:06,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 23:09:06,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 23:09:06,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:09:06,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 23:09:06,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 23:09:06,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 23:09:06,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 23:09:06,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:09:06,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 23:09:06,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 23:09:06,541 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 23:09:06,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 23:09:06,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 23:09:06,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 23:09:06,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 23:09:06,900 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 23:09:06,902 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifncompf.c [2020-07-21 23:09:06,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c739c34d9/ecd18cebb67d4b95a5e842015e17b8ce/FLAG52d7e184e [2020-07-21 23:09:07,443 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 23:09:07,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncompf.c [2020-07-21 23:09:07,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c739c34d9/ecd18cebb67d4b95a5e842015e17b8ce/FLAG52d7e184e [2020-07-21 23:09:07,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c739c34d9/ecd18cebb67d4b95a5e842015e17b8ce [2020-07-21 23:09:07,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 23:09:07,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 23:09:07,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 23:09:07,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 23:09:07,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 23:09:07,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:09:07" (1/1) ... [2020-07-21 23:09:07,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c5ac73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:07, skipping insertion in model container [2020-07-21 23:09:07,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:09:07" (1/1) ... [2020-07-21 23:09:07,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 23:09:07,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 23:09:08,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:09:08,074 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 23:09:08,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:09:08,116 INFO L208 MainTranslator]: Completed translation [2020-07-21 23:09:08,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08 WrapperNode [2020-07-21 23:09:08,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 23:09:08,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 23:09:08,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 23:09:08,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 23:09:08,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (1/1) ... [2020-07-21 23:09:08,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 23:09:08,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 23:09:08,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 23:09:08,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 23:09:08,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (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 [2020-07-21 23:09:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 23:09:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 23:09:08,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 23:09:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 23:09:08,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 23:09:08,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 23:09:08,421 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 23:09:08,421 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 23:09:08,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 23:09:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 23:09:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 23:09:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 23:09:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 23:09:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 23:09:08,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 23:09:08,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 23:09:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 23:09:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 23:09:08,816 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 23:09:08,817 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 23:09:08,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:09:08 BoogieIcfgContainer [2020-07-21 23:09:08,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 23:09:08,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 23:09:08,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 23:09:08,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 23:09:08,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:09:07" (1/3) ... [2020-07-21 23:09:08,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8fc2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:09:08, skipping insertion in model container [2020-07-21 23:09:08,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:09:08" (2/3) ... [2020-07-21 23:09:08,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8fc2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:09:08, skipping insertion in model container [2020-07-21 23:09:08,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:09:08" (3/3) ... [2020-07-21 23:09:08,829 INFO L109 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2020-07-21 23:09:08,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 23:09:08,847 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 23:09:08,861 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 23:09:08,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 23:09:08,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 23:09:08,884 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 23:09:08,885 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 23:09:08,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 23:09:08,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 23:09:08,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 23:09:08,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 23:09:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-21 23:09:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-21 23:09:08,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:09:08,910 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] [2020-07-21 23:09:08,911 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:09:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:09:08,917 INFO L82 PathProgramCache]: Analyzing trace with hash -794599326, now seen corresponding path program 1 times [2020-07-21 23:09:08,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:09:08,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400662628] [2020-07-21 23:09:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 23:09:09,046 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 23:09:09,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:09:09,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 23:09:09,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:09:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:09:09,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:09:09,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400662628] [2020-07-21 23:09:09,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:09:09,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 23:09:09,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038164836] [2020-07-21 23:09:09,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 23:09:09,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:09:09,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 23:09:09,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 23:09:09,101 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-07-21 23:09:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:09:09,125 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2020-07-21 23:09:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 23:09:09,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2020-07-21 23:09:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:09:09,134 INFO L225 Difference]: With dead ends: 70 [2020-07-21 23:09:09,135 INFO L226 Difference]: Without dead ends: 35 [2020-07-21 23:09:09,138 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 [2020-07-21 23:09:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-21 23:09:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-21 23:09:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-21 23:09:09,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-07-21 23:09:09,177 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 24 [2020-07-21 23:09:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:09:09,178 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-07-21 23:09:09,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 23:09:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2020-07-21 23:09:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-21 23:09:09,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:09:09,180 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] [2020-07-21 23:09:09,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:09:09,387 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:09:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:09:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash -544938994, now seen corresponding path program 1 times [2020-07-21 23:09:09,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:09:09,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934348502] [2020-07-21 23:09:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 23:09:09,479 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:09:09,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:09:09,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 23:09:09,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:09:09,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:09:09,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:09:09,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934348502] [2020-07-21 23:09:09,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:09:09,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 23:09:09,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522023551] [2020-07-21 23:09:09,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 23:09:09,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:09:09,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 23:09:09,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 23:09:09,531 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 4 states. [2020-07-21 23:09:09,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:09:09,656 INFO L93 Difference]: Finished difference Result 67 states and 84 transitions. [2020-07-21 23:09:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 23:09:09,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-21 23:09:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:09:09,660 INFO L225 Difference]: With dead ends: 67 [2020-07-21 23:09:09,661 INFO L226 Difference]: Without dead ends: 48 [2020-07-21 23:09:09,662 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 [2020-07-21 23:09:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-21 23:09:09,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2020-07-21 23:09:09,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-21 23:09:09,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-07-21 23:09:09,676 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 24 [2020-07-21 23:09:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:09:09,676 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-07-21 23:09:09,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 23:09:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-07-21 23:09:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-21 23:09:09,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:09:09,678 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] [2020-07-21 23:09:09,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:09:09,893 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:09:09,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:09:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1796917477, now seen corresponding path program 1 times [2020-07-21 23:09:09,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:09:09,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033187119] [2020-07-21 23:09:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 23:09:09,971 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:09:09,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:09:09,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 23:09:09,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:09:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 23:09:10,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:09:10,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033187119] [2020-07-21 23:09:10,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:09:10,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:09:10,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784933846] [2020-07-21 23:09:10,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:09:10,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:09:10,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:09:10,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:09:10,022 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 3 states. [2020-07-21 23:09:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:09:10,114 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-07-21 23:09:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:09:10,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-21 23:09:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:09:10,119 INFO L225 Difference]: With dead ends: 72 [2020-07-21 23:09:10,119 INFO L226 Difference]: Without dead ends: 48 [2020-07-21 23:09:10,120 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 [2020-07-21 23:09:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-21 23:09:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2020-07-21 23:09:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-21 23:09:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-07-21 23:09:10,135 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 33 [2020-07-21 23:09:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:09:10,136 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-07-21 23:09:10,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:09:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-07-21 23:09:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-21 23:09:10,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:09:10,138 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] [2020-07-21 23:09:10,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:09:10,352 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:09:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:09:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1817991449, now seen corresponding path program 1 times [2020-07-21 23:09:10,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:09:10,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425982443] [2020-07-21 23:09:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 23:09:10,417 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:09:10,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 23:09:10,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 23:09:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 23:09:10,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 23:09:10,492 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 23:09:10,492 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 23:09:10,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:09:10,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:09:10 BoogieIcfgContainer [2020-07-21 23:09:10,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:09:10,779 INFO L168 Benchmark]: Toolchain (without parser) took 2950.20 ms. Allocated memory was 138.9 MB in the beginning and 231.7 MB in the end (delta: 92.8 MB). Free memory was 103.0 MB in the beginning and 183.6 MB in the end (delta: -80.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:10,780 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 23:09:10,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.29 ms. Allocated memory is still 138.9 MB. Free memory was 102.6 MB in the beginning and 92.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:10,782 INFO L168 Benchmark]: Boogie Preprocessor took 224.36 ms. Allocated memory was 138.9 MB in the beginning and 207.6 MB in the end (delta: 68.7 MB). Free memory was 92.0 MB in the beginning and 185.0 MB in the end (delta: -93.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:10,783 INFO L168 Benchmark]: RCFGBuilder took 478.45 ms. Allocated memory is still 207.6 MB. Free memory was 185.0 MB in the beginning and 165.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:10,784 INFO L168 Benchmark]: TraceAbstraction took 1954.81 ms. Allocated memory was 207.6 MB in the beginning and 231.7 MB in the end (delta: 24.1 MB). Free memory was 164.8 MB in the beginning and 183.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:10,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.29 ms. Allocated memory is still 138.9 MB. Free memory was 102.6 MB in the beginning and 92.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 224.36 ms. Allocated memory was 138.9 MB in the beginning and 207.6 MB in the end (delta: 68.7 MB). Free memory was 92.0 MB in the beginning and 185.0 MB in the end (delta: -93.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.45 ms. Allocated memory is still 207.6 MB. Free memory was 185.0 MB in the beginning and 165.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1954.81 ms. Allocated memory was 207.6 MB in the beginning and 231.7 MB in the end (delta: 24.1 MB). Free memory was 164.8 MB in the beginning and 183.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 5.2 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={-4:0}, c={-3:0}, i=0, malloc(sizeof(long long)*N)={-2:0}, malloc(sizeof(long long)*N)={-4:0}, malloc(sizeof(long long)*N)={-3:0}, N=1] [L30] COND TRUE i