/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:31:49,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:31:49,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:31:49,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:31:49,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:31:49,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:31:49,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:31:49,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:31:49,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:31:49,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:31:49,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:31:49,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:31:49,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:31:49,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:31:49,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:31:49,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:31:49,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:31:49,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:31:49,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:31:49,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:31:49,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:31:49,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:31:49,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:31:49,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:31:49,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:31:49,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:31:49,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:31:49,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:31:49,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:31:49,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:31:49,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:31:49,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:31:49,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:31:49,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:31:49,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:31:49,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:31:49,283 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 [2020-07-07 11:31:49,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:31:49,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:31:49,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:31:49,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:31:49,301 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:31:49,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:31:49,302 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:31:49,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:31:49,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:31:49,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:31:49,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:31:49,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:31:49,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:31:49,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:31:49,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:31:49,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:31:49,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:31:49,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:31:49,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:31:49,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:31:49,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:31:49,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:31:49,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:31:49,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:31:49,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:31:49,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:31:49,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:31:49,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:31:49,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:31:49,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:31:49,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:31:49,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:31:49,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:31:49,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:31:49,619 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:31:49,620 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-07-07 11:31:49,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2a9c7e8/6a995e52332a49c695df739342fa9a2e/FLAGf9b15fb8a [2020-07-07 11:31:50,192 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:31:50,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condgf.c [2020-07-07 11:31:50,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2a9c7e8/6a995e52332a49c695df739342fa9a2e/FLAGf9b15fb8a [2020-07-07 11:31:50,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2a9c7e8/6a995e52332a49c695df739342fa9a2e [2020-07-07 11:31:50,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:31:50,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:31:50,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:31:50,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:31:50,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:31:50,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:50,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcf5463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50, skipping insertion in model container [2020-07-07 11:31:50,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:50,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:31:50,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:31:50,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:31:50,872 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:31:50,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:31:50,911 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:31:50,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50 WrapperNode [2020-07-07 11:31:50,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:31:50,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:31:50,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:31:50,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:31:51,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (1/1) ... [2020-07-07 11:31:51,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:31:51,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:31:51,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:31:51,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:31:51,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (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 [2020-07-07 11:31:51,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:31:51,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:31:51,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 11:31:51,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:31:51,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:31:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:31:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:31:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 11:31:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:31:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:31:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:31:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:31:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:31:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:31:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 11:31:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 11:31:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:31:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:31:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:31:51,536 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:31:51,536 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-07 11:31:51,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:31:51 BoogieIcfgContainer [2020-07-07 11:31:51,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:31:51,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:31:51,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:31:51,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:31:51,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:31:50" (1/3) ... [2020-07-07 11:31:51,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b72a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:31:51, skipping insertion in model container [2020-07-07 11:31:51,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:31:50" (2/3) ... [2020-07-07 11:31:51,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b72a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:31:51, skipping insertion in model container [2020-07-07 11:31:51,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:31:51" (3/3) ... [2020-07-07 11:31:51,550 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-07-07 11:31:51,558 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:31:51,565 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:31:51,579 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:31:51,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:31:51,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:31:51,600 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:31:51,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:31:51,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:31:51,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:31:51,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:31:51,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:31:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-07 11:31:51,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 11:31:51,624 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:51,625 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] [2020-07-07 11:31:51,625 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:51,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:51,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-07-07 11:31:51,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:51,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144190185] [2020-07-07 11:31:51,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:51,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144190185] [2020-07-07 11:31:51,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:31:51,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 11:31:51,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585052922] [2020-07-07 11:31:51,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:31:51,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:51,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:31:51,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:31:51,868 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-07-07 11:31:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:52,013 INFO L93 Difference]: Finished difference Result 66 states and 87 transitions. [2020-07-07 11:31:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:31:52,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-07 11:31:52,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:52,025 INFO L225 Difference]: With dead ends: 66 [2020-07-07 11:31:52,026 INFO L226 Difference]: Without dead ends: 33 [2020-07-07 11:31:52,030 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 [2020-07-07 11:31:52,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-07 11:31:52,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-07 11:31:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-07 11:31:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-07-07 11:31:52,072 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2020-07-07 11:31:52,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:52,072 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-07-07 11:31:52,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:31:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-07 11:31:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 11:31:52,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:52,074 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] [2020-07-07 11:31:52,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:31:52,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:52,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:52,075 INFO L82 PathProgramCache]: Analyzing trace with hash 34447140, now seen corresponding path program 1 times [2020-07-07 11:31:52,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:52,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703436734] [2020-07-07 11:31:52,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:52,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703436734] [2020-07-07 11:31:52,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:31:52,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:31:52,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914924983] [2020-07-07 11:31:52,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:31:52,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:52,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:31:52,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:31:52,213 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-07-07 11:31:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:52,386 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-07-07 11:31:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:31:52,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-07 11:31:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:52,391 INFO L225 Difference]: With dead ends: 62 [2020-07-07 11:31:52,391 INFO L226 Difference]: Without dead ends: 44 [2020-07-07 11:31:52,393 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 [2020-07-07 11:31:52,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-07 11:31:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-07-07 11:31:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-07 11:31:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-07-07 11:31:52,408 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-07-07 11:31:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:52,409 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-07-07 11:31:52,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:31:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-07-07 11:31:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-07 11:31:52,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:52,411 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] [2020-07-07 11:31:52,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:31:52,412 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:52,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-07-07 11:31:52,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:52,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789200357] [2020-07-07 11:31:52,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:52,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:52,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789200357] [2020-07-07 11:31:52,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667086959] [2020-07-07 11:31:52,940 INFO L94 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 -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 [2020-07-07 11:31:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:31:53,022 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-07 11:31:53,030 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:31:53,096 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 11 treesize of output 7 [2020-07-07 11:31:53,097 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,110 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:53,111 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,112 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-07-07 11:31:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-07 11:31:53,152 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-07-07 11:31:53,153 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,164 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:53,165 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,165 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2020-07-07 11:31:53,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-07 11:31:53,305 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-07-07 11:31:53,307 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,317 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:53,319 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-07 11:31:53,319 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:23 [2020-07-07 11:31:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-07 11:31:53,403 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-07-07 11:31:53,404 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,413 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:31:53,414 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:31:53,415 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:7 [2020-07-07 11:31:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:31:53,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:31:53,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-07-07 11:31:53,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750434029] [2020-07-07 11:31:53,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 11:31:53,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:31:53,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 11:31:53,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:31:53,462 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 17 states. [2020-07-07 11:31:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:31:54,249 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2020-07-07 11:31:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:31:54,251 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 31 [2020-07-07 11:31:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:31:54,255 INFO L225 Difference]: With dead ends: 71 [2020-07-07 11:31:54,255 INFO L226 Difference]: Without dead ends: 57 [2020-07-07 11:31:54,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2020-07-07 11:31:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-07 11:31:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2020-07-07 11:31:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-07 11:31:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-07-07 11:31:54,272 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 31 [2020-07-07 11:31:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:31:54,273 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-07-07 11:31:54,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 11:31:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-07-07 11:31:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-07 11:31:54,275 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:31:54,275 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] [2020-07-07 11:31:54,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:31:54,490 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:31:54,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:31:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-07-07 11:31:54,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:31:54,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232105183] [2020-07-07 11:31:54,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:31:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:31:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:31:54,576 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 11:31:54,577 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 11:31:54,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:31:54,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:31:54 BoogieIcfgContainer [2020-07-07 11:31:54,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:31:54,627 INFO L168 Benchmark]: Toolchain (without parser) took 4045.80 ms. Allocated memory was 136.3 MB in the beginning and 250.6 MB in the end (delta: 114.3 MB). Free memory was 101.2 MB in the beginning and 173.3 MB in the end (delta: -72.1 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:54,628 INFO L168 Benchmark]: CDTParser took 1.54 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:31:54,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.31 ms. Allocated memory is still 136.3 MB. Free memory was 101.0 MB in the beginning and 90.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:54,630 INFO L168 Benchmark]: Boogie Preprocessor took 139.72 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 90.3 MB in the beginning and 177.0 MB in the end (delta: -86.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:54,632 INFO L168 Benchmark]: RCFGBuilder took 488.55 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 159.1 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:54,633 INFO L168 Benchmark]: TraceAbstraction took 3079.83 ms. Allocated memory was 199.8 MB in the beginning and 250.6 MB in the end (delta: 50.9 MB). Free memory was 158.4 MB in the beginning and 173.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:31:54,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.31 ms. Allocated memory is still 136.3 MB. Free memory was 101.0 MB in the beginning and 90.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.72 ms. Allocated memory was 136.3 MB in the beginning and 199.8 MB in the end (delta: 63.4 MB). Free memory was 90.3 MB in the beginning and 177.0 MB in the end (delta: -86.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 488.55 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 159.1 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3079.83 ms. Allocated memory was 199.8 MB in the beginning and 250.6 MB in the end (delta: 50.9 MB). Free memory was 158.4 MB in the beginning and 173.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 36.0 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)=10, 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 sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={5:0}] [L30] COND TRUE i