/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --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/modnf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:30:32,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:30:32,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:30:32,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:30:32,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:30:32,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:30:32,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:30:32,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:30:32,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:30:32,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:30:32,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:30:32,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:30:32,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:30:32,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:30:32,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:30:32,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:30:32,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:30:32,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:30:32,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:30:32,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:30:32,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:30:32,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:30:32,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:30:32,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:30:32,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:30:32,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:30:32,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:30:32,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:30:32,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:30:32,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:30:32,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:30:32,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:30:32,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:30:32,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:30:32,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:30:32,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:30:32,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:30:32,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:30:32,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:30:32,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:30:32,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:30:32,157 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 [2020-09-21 11:30:32,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:30:32,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:30:32,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:30:32,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:30:32,218 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:30:32,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:30:32,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:30:32,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:30:32,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:30:32,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:30:32,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:30:32,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:30:32,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:30:32,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:30:32,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:30:32,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:30:32,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:30:32,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:30:32,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:30:32,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:30:32,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:30:32,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:30:32,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:30:32,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:30:32,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:30:32,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:30:32,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:30:32,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:30:32,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:30:32,225 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:30:32,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:30:32,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:30:32,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:30:32,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:30:32,750 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:30:32,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modnf.c [2020-09-21 11:30:32,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6365f717e/13b37e25e12644eaa3500bd19d5934b6/FLAGe5af6ddca [2020-09-21 11:30:33,407 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:30:33,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/modnf.c [2020-09-21 11:30:33,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6365f717e/13b37e25e12644eaa3500bd19d5934b6/FLAGe5af6ddca [2020-09-21 11:30:33,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6365f717e/13b37e25e12644eaa3500bd19d5934b6 [2020-09-21 11:30:33,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:30:33,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:30:33,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:30:33,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:30:33,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:30:33,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:30:33" (1/1) ... [2020-09-21 11:30:33,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d283ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:33, skipping insertion in model container [2020-09-21 11:30:33,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:30:33" (1/1) ... [2020-09-21 11:30:33,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:30:33,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:30:34,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:30:34,157 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:30:34,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:30:34,197 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:30:34,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34 WrapperNode [2020-09-21 11:30:34,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:30:34,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:30:34,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:30:34,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:30:34,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (1/1) ... [2020-09-21 11:30:34,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:30:34,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:30:34,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:30:34,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:30:34,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (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 [2020-09-21 11:30:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:30:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:30:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 11:30:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-21 11:30:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:30:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:30:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:30:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 11:30:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 11:30:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:30:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:30:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:30:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:30:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:30:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:30:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:30:34,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:30:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:30:34,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:30:34,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:30:34,822 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-21 11:30:34,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:30:34 BoogieIcfgContainer [2020-09-21 11:30:34,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:30:34,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:30:34,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:30:34,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:30:34,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:30:33" (1/3) ... [2020-09-21 11:30:34,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1307fa16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:30:34, skipping insertion in model container [2020-09-21 11:30:34,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:34" (2/3) ... [2020-09-21 11:30:34,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1307fa16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:30:34, skipping insertion in model container [2020-09-21 11:30:34,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:30:34" (3/3) ... [2020-09-21 11:30:34,837 INFO L109 eAbstractionObserver]: Analyzing ICFG modnf.c [2020-09-21 11:30:34,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:30:34,859 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:30:34,881 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:30:34,910 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:30:34,910 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:30:34,910 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:30:34,910 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:30:34,910 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:30:34,910 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:30:34,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:30:34,911 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:30:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-21 11:30:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-21 11:30:34,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:30:34,941 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] [2020-09-21 11:30:34,941 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:30:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:30:34,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1314760119, now seen corresponding path program 1 times [2020-09-21 11:30:34,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:30:34,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889894075] [2020-09-21 11:30:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:30:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:35,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:35,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:35,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:30:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:30:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:30:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:30:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:30:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:35,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:35,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:35,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:35,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:30:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:30:35,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:30:35,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:35,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 11:30:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:35,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:35,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:35,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:35,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:35,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:30:35,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:35,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:30:35,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:35,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:35,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:30:35,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:35,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:30:35,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889894075] [2020-09-21 11:30:35,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:30:35,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:30:35,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347517078] [2020-09-21 11:30:35,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:30:35,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:30:35,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:30:35,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:30:35,257 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-09-21 11:30:35,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:30:35,395 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2020-09-21 11:30:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:30:35,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-21 11:30:35,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:30:35,420 INFO L225 Difference]: With dead ends: 58 [2020-09-21 11:30:35,421 INFO L226 Difference]: Without dead ends: 29 [2020-09-21 11:30:35,427 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 [2020-09-21 11:30:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-21 11:30:35,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-21 11:30:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-21 11:30:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-09-21 11:30:35,485 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2020-09-21 11:30:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:30:35,485 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-09-21 11:30:35,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:30:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-09-21 11:30:35,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-21 11:30:35,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:30:35,487 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] [2020-09-21 11:30:35,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:30:35,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:30:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:30:35,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1901566133, now seen corresponding path program 1 times [2020-09-21 11:30:35,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:30:35,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129105436] [2020-09-21 11:30:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:30:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:35,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:35,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:35,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:35,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:35,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:30:35,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:30:35,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:30:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:30:35,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:30:35,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:35,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:30:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:35,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:35,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:35,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:35,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:35,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:30:35,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:30:35,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:30:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:35,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:30:35,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 11:30:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:35,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:35,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:35,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:35,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:35,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:30:35,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:30:35,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:30:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:30:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:30:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:30:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:30:35,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129105436] [2020-09-21 11:30:35,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:30:35,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:30:35,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143081508] [2020-09-21 11:30:35,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:30:35,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:30:35,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:30:35,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:30:35,725 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2020-09-21 11:30:35,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:30:35,873 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2020-09-21 11:30:35,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:30:35,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-21 11:30:35,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:30:35,877 INFO L225 Difference]: With dead ends: 51 [2020-09-21 11:30:35,877 INFO L226 Difference]: Without dead ends: 37 [2020-09-21 11:30:35,879 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 [2020-09-21 11:30:35,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-21 11:30:35,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2020-09-21 11:30:35,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-21 11:30:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-09-21 11:30:35,894 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 22 [2020-09-21 11:30:35,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:30:35,894 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-09-21 11:30:35,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:30:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-09-21 11:30:35,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 11:30:35,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:30:35,896 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] [2020-09-21 11:30:35,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:30:35,897 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:30:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:30:35,897 INFO L82 PathProgramCache]: Analyzing trace with hash -69884793, now seen corresponding path program 1 times [2020-09-21 11:30:35,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:30:35,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265022116] [2020-09-21 11:30:35,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:30:35,921 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-21 11:30:35,921 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-21 11:30:35,921 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:30:35,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:30:35,948 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-21 11:30:35,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:30:35 BoogieIcfgContainer [2020-09-21 11:30:35,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:30:35,952 INFO L168 Benchmark]: Toolchain (without parser) took 2102.22 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 104.1 MB in the beginning and 97.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 62.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:35,953 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:30:35,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.21 ms. Allocated memory is still 148.4 MB. Free memory was 103.5 MB in the beginning and 93.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:35,955 INFO L168 Benchmark]: Boogie Preprocessor took 180.45 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 93.1 MB in the beginning and 181.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:35,956 INFO L168 Benchmark]: RCFGBuilder took 448.08 ms. Allocated memory is still 203.9 MB. Free memory was 181.1 MB in the beginning and 164.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:35,957 INFO L168 Benchmark]: TraceAbstraction took 1120.00 ms. Allocated memory is still 203.9 MB. Free memory was 163.9 MB in the beginning and 97.3 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:35,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.21 ms. Allocated memory is still 148.4 MB. Free memory was 103.5 MB in the beginning and 93.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.45 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 93.1 MB in the beginning and 181.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.08 ms. Allocated memory is still 203.9 MB. Free memory was 181.1 MB in the beginning and 164.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1120.00 ms. Allocated memory is still 203.9 MB. Free memory was 163.9 MB in the beginning and 97.3 MB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 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] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i