/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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/modsf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:08:55,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:08:55,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:08:55,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:08:55,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:08:55,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:08:55,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:08:55,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:08:55,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:08:55,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:08:55,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:08:55,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:08:55,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:08:55,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:08:55,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:08:55,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:08:55,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:08:55,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:08:55,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:08:55,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:08:55,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:08:55,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:08:55,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:08:55,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:08:55,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:08:55,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:08:55,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:08:55,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:08:55,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:08:55,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:08:55,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:08:55,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:08:55,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:08:55,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:08:55,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:08:55,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:08:55,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:08:55,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:08:55,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:08:55,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:08:55,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:08:55,455 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 [2020-09-25 01:08:55,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:08:55,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:08:55,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:08:55,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:08:55,521 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:08:55,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:08:55,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:08:55,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:08:55,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:08:55,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:08:55,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:08:55,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:08:55,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:08:55,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:08:55,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:08:55,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:08:55,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:08:55,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:08:55,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:08:55,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:08:55,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:08:55,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:08:55,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:08:55,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:08:55,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:08:55,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:08:55,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:08:55,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:08:55,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:08:55,526 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 01:08:56,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:08:56,066 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:08:56,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:08:56,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:08:56,074 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:08:56,076 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modsf.c [2020-09-25 01:08:56,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1fa47557/1d993d1e24e94ba681e1373ad42034c3/FLAGf020bad9e [2020-09-25 01:08:56,734 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:08:56,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/modsf.c [2020-09-25 01:08:56,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1fa47557/1d993d1e24e94ba681e1373ad42034c3/FLAGf020bad9e [2020-09-25 01:08:57,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1fa47557/1d993d1e24e94ba681e1373ad42034c3 [2020-09-25 01:08:57,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:08:57,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:08:57,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:08:57,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:08:57,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:08:57,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc4fd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57, skipping insertion in model container [2020-09-25 01:08:57,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:08:57,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:08:57,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:08:57,369 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:08:57,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:08:57,419 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:08:57,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57 WrapperNode [2020-09-25 01:08:57,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:08:57,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:08:57,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:08:57,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:08:57,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:08:57,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:08:57,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:08:57,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:08:57,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (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 [2020-09-25 01:08:57,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:08:57,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:08:57,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:08:57,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:08:57,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:08:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:08:57,668 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:08:57,669 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:08:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:08:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:08:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:08:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:08:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:08:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:08:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:08:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:08:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:08:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:08:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:08:58,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:08:58,049 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:08:58,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:08:58 BoogieIcfgContainer [2020-09-25 01:08:58,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:08:58,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:08:58,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:08:58,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:08:58,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:08:57" (1/3) ... [2020-09-25 01:08:58,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e864c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:08:58, skipping insertion in model container [2020-09-25 01:08:58,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (2/3) ... [2020-09-25 01:08:58,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e864c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:08:58, skipping insertion in model container [2020-09-25 01:08:58,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:08:58" (3/3) ... [2020-09-25 01:08:58,092 INFO L109 eAbstractionObserver]: Analyzing ICFG modsf.c [2020-09-25 01:08:58,125 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:08:58,144 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:08:58,167 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:08:58,203 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:08:58,203 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:08:58,204 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:08:58,204 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:08:58,204 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:08:58,204 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:08:58,204 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:08:58,204 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:08:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-25 01:08:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 01:08:58,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:58,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:58,245 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:58,252 INFO L82 PathProgramCache]: Analyzing trace with hash 731228111, now seen corresponding path program 1 times [2020-09-25 01:08:58,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:58,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712519316] [2020-09-25 01:08:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:58,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:58,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 01:08:58,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:08:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-25 01:08:58,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 01:08:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:08:58,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:08:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:08:58,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:08:58,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:08:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:58,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:58,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:08:58,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:08:58,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:08:58,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712519316] [2020-09-25 01:08:58,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:08:58,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:08:58,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326975744] [2020-09-25 01:08:58,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:08:58,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:08:59,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:08:59,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:08:59,009 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states. [2020-09-25 01:08:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:08:59,217 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions. [2020-09-25 01:08:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:08:59,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-09-25 01:08:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:08:59,232 INFO L225 Difference]: With dead ends: 145 [2020-09-25 01:08:59,233 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 01:08:59,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:08:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 01:08:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-25 01:08:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-25 01:08:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-25 01:08:59,296 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 37 [2020-09-25 01:08:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:08:59,297 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-25 01:08:59,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:08:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-25 01:08:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 01:08:59,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:59,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:59,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:08:59,300 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:59,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:59,301 INFO L82 PathProgramCache]: Analyzing trace with hash 681190783, now seen corresponding path program 1 times [2020-09-25 01:08:59,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:59,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419393103] [2020-09-25 01:08:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:59,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:00,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:00,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 01:09:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:09:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1554 [2020-09-25 01:09:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:09:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 01:09:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:09:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 01:09:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:09:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:00,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:09:00,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:09:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:00,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:09:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:00,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:00,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:01,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:09:01,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:01,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:09:01,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:09:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:09:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:09:01,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:09:01,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419393103] [2020-09-25 01:09:01,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:09:01,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:09:01,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347442635] [2020-09-25 01:09:01,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:09:01,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:01,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:09:01,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:09:01,015 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 6 states. [2020-09-25 01:09:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:01,402 INFO L93 Difference]: Finished difference Result 157 states and 172 transitions. [2020-09-25 01:09:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:09:01,403 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-25 01:09:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:01,407 INFO L225 Difference]: With dead ends: 157 [2020-09-25 01:09:01,407 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 01:09:01,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:09:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 01:09:01,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 76. [2020-09-25 01:09:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 01:09:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2020-09-25 01:09:01,428 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 37 [2020-09-25 01:09:01,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:01,428 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2020-09-25 01:09:01,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:09:01,428 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2020-09-25 01:09:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 01:09:01,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:01,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:09:01,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:09:01,431 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:01,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1093467533, now seen corresponding path program 1 times [2020-09-25 01:09:01,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:01,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323022187] [2020-09-25 01:09:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:01,452 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-25 01:09:01,453 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-25 01:09:01,453 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:09:01,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:09:01,482 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-25 01:09:01,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:09:01 BoogieIcfgContainer [2020-09-25 01:09:01,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:09:01,487 INFO L168 Benchmark]: Toolchain (without parser) took 4425.82 ms. Allocated memory was 138.9 MB in the beginning and 247.5 MB in the end (delta: 108.5 MB). Free memory was 102.4 MB in the beginning and 183.0 MB in the end (delta: -80.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:01,489 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 01:09:01,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.16 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 90.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:01,490 INFO L168 Benchmark]: Boogie Preprocessor took 162.89 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 90.6 MB in the beginning and 179.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:01,491 INFO L168 Benchmark]: RCFGBuilder took 478.33 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 156.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:01,492 INFO L168 Benchmark]: TraceAbstraction took 3410.24 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 156.9 MB in the beginning and 183.0 MB in the end (delta: -26.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:01,497 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 356.16 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 90.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.89 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 90.6 MB in the beginning and 179.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.33 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 156.9 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3410.24 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 156.9 MB in the beginning and 183.0 MB in the end (delta: -26.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible 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] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i