/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:23:28,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:23:28,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:23:28,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:23:28,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:23:28,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:23:28,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:23:28,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:23:28,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:23:28,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:23:28,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:23:28,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:23:28,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:23:28,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:23:28,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:23:28,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:23:28,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:23:28,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:23:28,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:23:28,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:23:28,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:23:28,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:23:28,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:23:28,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:23:28,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:23:28,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:23:28,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:23:28,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:23:28,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:23:28,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:23:28,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:23:28,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:23:28,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:23:28,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:23:28,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:23:28,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:23:28,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:23:28,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:23:28,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:23:28,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:23:28,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:23:28,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 06:23:28,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:23:28,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:23:28,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:23:28,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:23:28,238 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:23:28,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:23:28,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:23:28,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:23:28,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:23:28,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:23:28,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:23:28,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:23:28,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:23:28,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:23:28,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:23:28,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:23:28,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:23:28,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:23:28,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:23:28,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:23:28,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:23:28,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:23:28,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:23:28,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:23:28,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:23:28,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:23:28,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:23:28,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:23:28,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:23:28,243 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:23:28,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:23:28,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:23:28,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:23:28,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:23:28,597 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:23:28,598 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-08-22 06:23:28,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63d8cfb1f/3e2c86a4ca07457f97ffc1d7fd40f8e2/FLAG36938cae2 [2020-08-22 06:23:29,068 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:23:29,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condgf.c [2020-08-22 06:23:29,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63d8cfb1f/3e2c86a4ca07457f97ffc1d7fd40f8e2/FLAG36938cae2 [2020-08-22 06:23:29,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63d8cfb1f/3e2c86a4ca07457f97ffc1d7fd40f8e2 [2020-08-22 06:23:29,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:23:29,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:23:29,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:23:29,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:23:29,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:23:29,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321ed854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29, skipping insertion in model container [2020-08-22 06:23:29,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:23:29,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:23:29,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:23:29,681 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:23:29,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:23:29,723 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:23:29,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29 WrapperNode [2020-08-22 06:23:29,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:23:29,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:23:29,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:23:29,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:23:29,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... [2020-08-22 06:23:29,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:23:29,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:23:29,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:23:29,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:23:29,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-22 06:23:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:23:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:23:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 06:23:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 06:23:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:23:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:23:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 06:23:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 06:23:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 06:23:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:23:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:23:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:23:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:23:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:23:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:23:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:23:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:23:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:23:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:23:30,469 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:23:30,469 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 06:23:30,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:23:30 BoogieIcfgContainer [2020-08-22 06:23:30,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:23:30,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:23:30,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:23:30,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:23:30,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:23:29" (1/3) ... [2020-08-22 06:23:30,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cc7e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:23:30, skipping insertion in model container [2020-08-22 06:23:30,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:23:29" (2/3) ... [2020-08-22 06:23:30,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cc7e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:23:30, skipping insertion in model container [2020-08-22 06:23:30,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:23:30" (3/3) ... [2020-08-22 06:23:30,482 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-08-22 06:23:30,494 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:23:30,502 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:23:30,518 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:23:30,545 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:23:30,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:23:30,546 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:23:30,546 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:23:30,546 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:23:30,546 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:23:30,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:23:30,547 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:23:30,572 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-08-22 06:23:30,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 06:23:30,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:23:30,580 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] [2020-08-22 06:23:30,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:23:30,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:23:30,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1314310818, now seen corresponding path program 1 times [2020-08-22 06:23:30,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:23:30,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339645063] [2020-08-22 06:23:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:23:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:30,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:23:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:30,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:23:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:23:30,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339645063] [2020-08-22 06:23:30,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:23:30,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 06:23:30,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866147205] [2020-08-22 06:23:30,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 06:23:30,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:23:30,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 06:23:30,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 06:23:30,853 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-08-22 06:23:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:23:30,982 INFO L93 Difference]: Finished difference Result 66 states and 87 transitions. [2020-08-22 06:23:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 06:23:30,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-08-22 06:23:30,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:23:30,997 INFO L225 Difference]: With dead ends: 66 [2020-08-22 06:23:30,997 INFO L226 Difference]: Without dead ends: 33 [2020-08-22 06:23:31,007 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 [2020-08-22 06:23:31,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-22 06:23:31,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-22 06:23:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-22 06:23:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-22 06:23:31,047 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2020-08-22 06:23:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:23:31,047 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-22 06:23:31,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 06:23:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-22 06:23:31,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 06:23:31,049 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:23:31,049 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] [2020-08-22 06:23:31,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:23:31,050 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:23:31,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:23:31,051 INFO L82 PathProgramCache]: Analyzing trace with hash 34447140, now seen corresponding path program 1 times [2020-08-22 06:23:31,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:23:31,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115771378] [2020-08-22 06:23:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:23:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:23:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:31,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:23:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:23:31,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115771378] [2020-08-22 06:23:31,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:23:31,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 06:23:31,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874442849] [2020-08-22 06:23:31,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 06:23:31,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:23:31,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 06:23:31,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:23:31,216 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-08-22 06:23:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:23:31,410 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-08-22 06:23:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 06:23:31,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-08-22 06:23:31,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:23:31,414 INFO L225 Difference]: With dead ends: 62 [2020-08-22 06:23:31,415 INFO L226 Difference]: Without dead ends: 44 [2020-08-22 06:23:31,416 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 [2020-08-22 06:23:31,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-22 06:23:31,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2020-08-22 06:23:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-22 06:23:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-08-22 06:23:31,433 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2020-08-22 06:23:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:23:31,433 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-08-22 06:23:31,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 06:23:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-08-22 06:23:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 06:23:31,435 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:23:31,435 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] [2020-08-22 06:23:31,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:23:31,436 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:23:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:23:31,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1408881596, now seen corresponding path program 1 times [2020-08-22 06:23:31,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:23:31,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638856093] [2020-08-22 06:23:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:23:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:31,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:23:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:31,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:23:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:23:31,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:23:31,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638856093] [2020-08-22 06:23:31,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:23:31,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 06:23:31,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805902148] [2020-08-22 06:23:31,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:23:31,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:23:31,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:23:31,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:23:31,907 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2020-08-22 06:23:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:23:32,330 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-08-22 06:23:32,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 06:23:32,331 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-08-22 06:23:32,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:23:32,333 INFO L225 Difference]: With dead ends: 59 [2020-08-22 06:23:32,334 INFO L226 Difference]: Without dead ends: 45 [2020-08-22 06:23:32,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:23:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-08-22 06:23:32,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-08-22 06:23:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-08-22 06:23:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2020-08-22 06:23:32,345 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 31 [2020-08-22 06:23:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:23:32,345 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2020-08-22 06:23:32,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 06:23:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-08-22 06:23:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 06:23:32,347 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:23:32,347 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] [2020-08-22 06:23:32,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:23:32,347 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:23:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:23:32,348 INFO L82 PathProgramCache]: Analyzing trace with hash -728823226, now seen corresponding path program 1 times [2020-08-22 06:23:32,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:23:32,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224795738] [2020-08-22 06:23:32,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:23:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 06:23:32,410 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 06:23:32,411 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 06:23:32,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:23:32,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:23:32 BoogieIcfgContainer [2020-08-22 06:23:32,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 06:23:32,443 INFO L168 Benchmark]: Toolchain (without parser) took 2992.87 ms. Allocated memory was 140.5 MB in the beginning and 232.3 MB in the end (delta: 91.8 MB). Free memory was 104.2 MB in the beginning and 126.3 MB in the end (delta: -22.1 MB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. [2020-08-22 06:23:32,444 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 06:23:32,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.81 ms. Allocated memory is still 140.5 MB. Free memory was 104.0 MB in the beginning and 93.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-22 06:23:32,446 INFO L168 Benchmark]: Boogie Preprocessor took 225.18 ms. Allocated memory was 140.5 MB in the beginning and 207.6 MB in the end (delta: 67.1 MB). Free memory was 93.2 MB in the beginning and 185.5 MB in the end (delta: -92.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-22 06:23:32,447 INFO L168 Benchmark]: RCFGBuilder took 523.39 ms. Allocated memory is still 207.6 MB. Free memory was 184.8 MB in the beginning and 167.1 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-08-22 06:23:32,448 INFO L168 Benchmark]: TraceAbstraction took 1965.24 ms. Allocated memory was 207.6 MB in the beginning and 232.3 MB in the end (delta: 24.6 MB). Free memory was 166.4 MB in the beginning and 126.3 MB in the end (delta: 40.1 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. [2020-08-22 06:23:32,452 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 273.81 ms. Allocated memory is still 140.5 MB. Free memory was 104.0 MB in the beginning and 93.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 225.18 ms. Allocated memory was 140.5 MB in the beginning and 207.6 MB in the end (delta: 67.1 MB). Free memory was 93.2 MB in the beginning and 185.5 MB in the end (delta: -92.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 523.39 ms. Allocated memory is still 207.6 MB. Free memory was 184.8 MB in the beginning and 167.1 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1965.24 ms. Allocated memory was 207.6 MB in the beginning and 232.3 MB in the end (delta: 24.6 MB). Free memory was 166.4 MB in the beginning and 126.3 MB in the end (delta: 40.1 MB). Peak memory consumption was 64.8 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; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i