/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condaf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:36:41,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:36:41,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:36:41,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:36:41,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:36:41,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:36:41,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:36:41,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:36:41,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:36:41,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:36:41,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:36:41,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:36:41,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:36:41,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:36:41,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:36:41,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:36:41,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:36:41,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:36:41,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:36:41,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:36:41,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:36:41,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:36:41,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:36:41,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:36:41,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 23:36:41,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 23:36:41,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 23:36:41,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 23:36:41,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 23:36:41,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 23:36:41,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 23:36:41,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 23:36:41,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 23:36:41,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 23:36:41,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 23:36:41,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 23:36:41,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 23:36:41,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 23:36:41,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:36:41,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:36:41,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:36:41,666 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 [2020-07-19 23:36:41,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:36:41,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:36:41,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:36:41,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:36:41,689 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:36:41,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:36:41,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:36:41,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:36:41,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:36:41,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:36:41,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:36:41,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:36:41,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:36:41,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:36:41,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:36:41,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:36:41,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:36:41,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:36:41,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:36:41,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:36:41,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:36:41,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:36:41,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:36:41,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:36:41,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:36:41,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:36:41,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:36:41,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:36:41,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:36:41,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:36:41,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:36:41,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:36:41,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:36:41,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:36:41,992 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:36:41,993 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condaf.c [2020-07-19 23:36:42,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e396c6769/ddaf4d42bf4745b8872b573ae7f14c1b/FLAG60a23c6da [2020-07-19 23:36:42,477 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:36:42,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c [2020-07-19 23:36:42,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e396c6769/ddaf4d42bf4745b8872b573ae7f14c1b/FLAG60a23c6da [2020-07-19 23:36:42,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e396c6769/ddaf4d42bf4745b8872b573ae7f14c1b [2020-07-19 23:36:42,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:36:42,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:36:42,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:36:42,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:36:42,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:36:42,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:36:42" (1/1) ... [2020-07-19 23:36:42,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2720f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:42, skipping insertion in model container [2020-07-19 23:36:42,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:36:42" (1/1) ... [2020-07-19 23:36:42,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:36:42,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:36:43,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:36:43,106 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:36:43,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:36:43,143 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:36:43,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43 WrapperNode [2020-07-19 23:36:43,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:36:43,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:36:43,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:36:43,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:36:43,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (1/1) ... [2020-07-19 23:36:43,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:36:43,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:36:43,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:36:43,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:36:43,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (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 [2020-07-19 23:36:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:36:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:36:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 23:36:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:36:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:36:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:36:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:36:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 23:36:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:36:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:36:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 23:36:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:36:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 23:36:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 23:36:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:36:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:36:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:36:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:36:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:36:43,581 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:36:43,581 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-19 23:36:43,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:36:43 BoogieIcfgContainer [2020-07-19 23:36:43,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:36:43,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:36:43,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:36:43,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:36:43,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:36:42" (1/3) ... [2020-07-19 23:36:43,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad0922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:36:43, skipping insertion in model container [2020-07-19 23:36:43,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:36:43" (2/3) ... [2020-07-19 23:36:43,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad0922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:36:43, skipping insertion in model container [2020-07-19 23:36:43,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:36:43" (3/3) ... [2020-07-19 23:36:43,602 INFO L109 eAbstractionObserver]: Analyzing ICFG condaf.c [2020-07-19 23:36:43,629 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:36:43,637 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:36:43,668 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:36:43,698 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:36:43,699 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:36:43,699 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:36:43,699 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:36:43,699 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:36:43,699 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:36:43,699 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:36:43,699 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:36:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-07-19 23:36:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-19 23:36:43,720 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:36:43,721 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] [2020-07-19 23:36:43,721 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:36:43,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:36:43,726 INFO L82 PathProgramCache]: Analyzing trace with hash -88121349, now seen corresponding path program 1 times [2020-07-19 23:36:43,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:36:43,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679710045] [2020-07-19 23:36:43,734 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5180ecdc [2020-07-19 23:36:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:36:43,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679710045] [2020-07-19 23:36:43,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:36:43,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 23:36:43,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117307485] [2020-07-19 23:36:43,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:36:43,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:36:43,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:36:43,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 23:36:43,942 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-07-19 23:36:44,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:36:44,050 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2020-07-19 23:36:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:36:44,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-19 23:36:44,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:36:44,063 INFO L225 Difference]: With dead ends: 60 [2020-07-19 23:36:44,063 INFO L226 Difference]: Without dead ends: 28 [2020-07-19 23:36:44,067 INFO L675 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 [2020-07-19 23:36:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-19 23:36:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-19 23:36:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-19 23:36:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-07-19 23:36:44,117 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 23 [2020-07-19 23:36:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:36:44,118 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-07-19 23:36:44,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:36:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-07-19 23:36:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-19 23:36:44,120 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:36:44,120 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] [2020-07-19 23:36:44,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:36:44,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:36:44,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:36:44,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1099238599, now seen corresponding path program 1 times [2020-07-19 23:36:44,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:36:44,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018855357] [2020-07-19 23:36:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5180ecdc [2020-07-19 23:36:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:36:44,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018855357] [2020-07-19 23:36:44,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:36:44,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 23:36:44,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676986027] [2020-07-19 23:36:44,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:36:44,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:36:44,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:36:44,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:36:44,263 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2020-07-19 23:36:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:36:44,392 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-07-19 23:36:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:36:44,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-19 23:36:44,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:36:44,394 INFO L225 Difference]: With dead ends: 48 [2020-07-19 23:36:44,394 INFO L226 Difference]: Without dead ends: 35 [2020-07-19 23:36:44,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:36:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-19 23:36:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-07-19 23:36:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-19 23:36:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-07-19 23:36:44,404 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 23 [2020-07-19 23:36:44,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:36:44,404 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-07-19 23:36:44,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:36:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-07-19 23:36:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:36:44,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:36:44,406 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] [2020-07-19 23:36:44,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:36:44,406 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:36:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:36:44,407 INFO L82 PathProgramCache]: Analyzing trace with hash 188437731, now seen corresponding path program 1 times [2020-07-19 23:36:44,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:36:44,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413880966] [2020-07-19 23:36:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5180ecdc [2020-07-19 23:36:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:36:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:36:44,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413880966] [2020-07-19 23:36:44,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218342888] [2020-07-19 23:36:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@599e12d8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:36:44,829 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@599e12d8 issued 2 check-sat command(s) [2020-07-19 23:36:44,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:36:44,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 23:36:44,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:36:44,924 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-07-19 23:36:44,925 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-19 23:36:44,934 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-19 23:36:44,935 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-19 23:36:44,935 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-07-19 23:36:45,053 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-19 23:36:45,054 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2020-07-19 23:36:45,056 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:36:45,059 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-19 23:36:45,073 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-19 23:36:45,076 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-19 23:36:45,078 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-19 23:36:45,078 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:37, output treesize:31 [2020-07-19 23:36:45,080 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-19 23:36:45,119 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-19 23:36:45,122 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-19 23:36:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:36:45,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:36:45,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-07-19 23:36:45,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090307240] [2020-07-19 23:36:45,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-19 23:36:45,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:36:45,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-19 23:36:45,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-07-19 23:36:45,201 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 17 states. [2020-07-19 23:36:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:36:45,870 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2020-07-19 23:36:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 23:36:45,871 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2020-07-19 23:36:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:36:45,872 INFO L225 Difference]: With dead ends: 54 [2020-07-19 23:36:45,872 INFO L226 Difference]: Without dead ends: 41 [2020-07-19 23:36:45,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2020-07-19 23:36:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-19 23:36:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2020-07-19 23:36:45,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-19 23:36:45,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-19 23:36:45,881 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 30 [2020-07-19 23:36:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:36:45,881 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-19 23:36:45,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-19 23:36:45,881 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-19 23:36:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:36:45,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:36:45,883 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] [2020-07-19 23:36:46,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:36:46,097 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:36:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:36:46,098 INFO L82 PathProgramCache]: Analyzing trace with hash 446603169, now seen corresponding path program 1 times [2020-07-19 23:36:46,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:36:46,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029846124] [2020-07-19 23:36:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5180ecdc [2020-07-19 23:36:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:36:46,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:36:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:36:46,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:36:46,228 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:36:46,229 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:36:46,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 23:36:46,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:36:46 BoogieIcfgContainer [2020-07-19 23:36:46,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:36:46,271 INFO L168 Benchmark]: Toolchain (without parser) took 3404.40 ms. Allocated memory was 143.7 MB in the beginning and 248.5 MB in the end (delta: 104.9 MB). Free memory was 101.9 MB in the beginning and 203.5 MB in the end (delta: -101.6 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-07-19 23:36:46,272 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:36:46,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.04 ms. Allocated memory is still 143.7 MB. Free memory was 101.5 MB in the beginning and 90.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:36:46,274 INFO L168 Benchmark]: Boogie Preprocessor took 123.37 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 90.9 MB in the beginning and 178.1 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:36:46,275 INFO L168 Benchmark]: RCFGBuilder took 317.34 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 160.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:36:46,276 INFO L168 Benchmark]: TraceAbstraction took 2682.37 ms. Allocated memory was 200.8 MB in the beginning and 248.5 MB in the end (delta: 47.7 MB). Free memory was 160.0 MB in the beginning and 203.5 MB in the end (delta: -43.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 23:36:46,280 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 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.04 ms. Allocated memory is still 143.7 MB. Free memory was 101.5 MB in the beginning and 90.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.37 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 90.9 MB in the beginning and 178.1 MB in the end (delta: -87.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 317.34 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 160.6 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2682.37 ms. Allocated memory was 200.8 MB in the beginning and 248.5 MB in the end (delta: 47.7 MB). Free memory was 160.0 MB in the beginning and 203.5 MB in the end (delta: -43.5 MB). Peak memory consumption was 4.2 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)=6, 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] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-2:0}, i=0, malloc(sizeof(int)*N)={-2:0}, N=1, sum={3:0}] [L30] COND TRUE i