/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/heavy-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:26:33,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:26:33,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:26:33,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:26:33,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:26:33,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:26:33,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:26:33,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:26:33,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:26:33,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:26:33,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:26:33,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:26:33,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:26:33,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:26:33,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:26:33,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:26:33,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:26:33,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:26:33,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:26:33,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:26:33,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:26:33,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:26:33,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:26:33,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:26:33,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:26:33,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:26:33,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:26:33,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:26:33,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:26:33,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:26:33,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:26:33,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:26:33,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:26:33,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:26:33,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:26:33,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:26:33,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:26:33,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:26:33,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:26:33,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:26:33,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:26:33,815 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 03:26:33,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:26:33,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:26:33,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:26:33,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:26:33,848 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:26:33,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:26:33,849 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:26:33,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:26:33,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:26:33,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:26:33,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:26:33,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:26:33,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:26:33,850 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:26:33,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:26:33,851 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:26:33,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:26:33,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:26:33,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:26:33,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:26:33,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:26:33,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:26:33,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:26:33,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:26:33,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:26:33,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:26:33,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:26:33,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:26:33,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:26:33,855 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:26:34,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:26:34,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:26:34,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:26:34,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:26:34,362 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:26:34,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/heavy-2.c [2020-09-25 03:26:34,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f0ce30da/f2f180fa7bff4b0fbdaf9e4eb39da34d/FLAG7c04e5fb8 [2020-09-25 03:26:35,042 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:26:35,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/heavy-2.c [2020-09-25 03:26:35,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f0ce30da/f2f180fa7bff4b0fbdaf9e4eb39da34d/FLAG7c04e5fb8 [2020-09-25 03:26:35,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f0ce30da/f2f180fa7bff4b0fbdaf9e4eb39da34d [2020-09-25 03:26:35,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:26:35,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:26:35,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:26:35,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:26:35,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:26:35,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35, skipping insertion in model container [2020-09-25 03:26:35,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:26:35,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:26:35,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:26:35,705 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:26:35,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:26:35,881 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:26:35,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35 WrapperNode [2020-09-25 03:26:35,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:26:35,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:26:35,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:26:35,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:26:35,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (1/1) ... [2020-09-25 03:26:35,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:26:35,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:26:35,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:26:35,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:26:35,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (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 03:26:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:26:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:26:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:26:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:26:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:26:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:26:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:26:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:26:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:26:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 03:26:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:26:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:26:36,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:26:36,305 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 03:26:36,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:26:36 BoogieIcfgContainer [2020-09-25 03:26:36,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:26:36,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:26:36,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:26:36,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:26:36,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:26:35" (1/3) ... [2020-09-25 03:26:36,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1a74b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:26:36, skipping insertion in model container [2020-09-25 03:26:36,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:35" (2/3) ... [2020-09-25 03:26:36,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1a74b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:26:36, skipping insertion in model container [2020-09-25 03:26:36,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:26:36" (3/3) ... [2020-09-25 03:26:36,323 INFO L109 eAbstractionObserver]: Analyzing ICFG heavy-2.c [2020-09-25 03:26:36,336 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:26:36,348 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:26:36,373 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:26:36,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:26:36,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:26:36,409 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:26:36,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:26:36,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:26:36,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:26:36,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:26:36,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:26:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-09-25 03:26:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 03:26:36,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:26:36,444 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] [2020-09-25 03:26:36,445 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:26:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:26:36,452 INFO L82 PathProgramCache]: Analyzing trace with hash 245897808, now seen corresponding path program 1 times [2020-09-25 03:26:36,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:26:36,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951850032] [2020-09-25 03:26:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:26:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:26:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:36,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:26:36,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:26:36,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:26:36,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 03:26:36,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:26:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:26:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:26:36,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:26:36,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 03:26:37,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:26:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:26:37,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:37,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:26:37,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:26:37,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:26:37,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:26:37,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:26:37,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:26:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:26:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:26:37,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:26:37,132 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 03:26:37,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951850032] [2020-09-25 03:26:37,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:26:37,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:26:37,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522879206] [2020-09-25 03:26:37,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:26:37,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:26:37,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:26:37,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:26:37,166 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-09-25 03:26:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:26:37,389 INFO L93 Difference]: Finished difference Result 94 states and 113 transitions. [2020-09-25 03:26:37,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:26:37,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-25 03:26:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:26:37,401 INFO L225 Difference]: With dead ends: 94 [2020-09-25 03:26:37,402 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:26:37,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:26:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:26:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:26:37,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:26:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:26:37,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-25 03:26:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:26:37,444 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:26:37,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:26:37,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:26:37,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:26:37,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:26:37,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:26:37,571 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 03:26:37,571 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 03:26:37,571 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 7) no Hoare annotation was computed. [2020-09-25 03:26:37,572 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#array~0.base| |old(~#array~0.base)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |~#array~0.offset| |old(~#array~0.offset)|)) [2020-09-25 03:26:37,572 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 03:26:37,572 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-25 03:26:37,572 INFO L268 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed. [2020-09-25 03:26:37,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:26:37,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:26:37,573 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:26:37,573 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:26:37,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:26:37,574 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 5 21) no Hoare annotation was computed. [2020-09-25 03:26:37,574 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 03:26:37,574 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-25 03:26:37,574 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 03:26:37,574 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-25 03:26:37,575 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~a~0 4294967296)))) (and (<= main_~a~0 (+ .cse0 1)) (< .cse0 main_~a~0) (<= main_~a~0 1))) [2020-09-25 03:26:37,575 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 03:26:37,575 INFO L264 CegarLoopResult]: At program point L16(lines 6 21) the Hoare annotation is: false [2020-09-25 03:26:37,576 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 03:26:37,576 INFO L268 CegarLoopResult]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-09-25 03:26:37,576 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 03:26:37,576 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 03:26:37,576 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-25 03:26:37,577 INFO L268 CegarLoopResult]: For program point L12-5(line 12) no Hoare annotation was computed. [2020-09-25 03:26:37,577 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-09-25 03:26:37,577 INFO L264 CegarLoopResult]: At program point L12-6(lines 12 13) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~a~0 4294967296)))) (and (<= main_~a~0 (+ .cse0 1)) (< .cse0 main_~a~0) (<= main_~a~0 1))) [2020-09-25 03:26:37,577 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-09-25 03:26:37,578 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 03:26:37,578 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 5 21) no Hoare annotation was computed. [2020-09-25 03:26:37,578 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 03:26:37,578 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 03:26:37,578 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-09-25 03:26:37,579 INFO L268 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-09-25 03:26:37,579 INFO L268 CegarLoopResult]: For program point L5(lines 5 21) no Hoare annotation was computed. [2020-09-25 03:26:37,579 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2020-09-25 03:26:37,579 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 5 21) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-09-25 03:26:37,580 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 03:26:37,580 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 03:26:37,580 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 03:26:37,580 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 03:26:37,580 INFO L268 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2020-09-25 03:26:37,581 INFO L268 CegarLoopResult]: For program point L10-4(line 10) no Hoare annotation was computed. [2020-09-25 03:26:37,581 INFO L268 CegarLoopResult]: For program point L10-5(line 10) no Hoare annotation was computed. [2020-09-25 03:26:37,581 INFO L264 CegarLoopResult]: At program point L10-6(lines 10 13) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~a~0 4294967296)))) (and (<= main_~a~0 (+ .cse0 1)) (< .cse0 main_~a~0) (<= main_~a~0 1))) [2020-09-25 03:26:37,581 INFO L268 CegarLoopResult]: For program point L10-7(lines 6 21) no Hoare annotation was computed. [2020-09-25 03:26:37,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:26:37 BoogieIcfgContainer [2020-09-25 03:26:37,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:26:37,610 INFO L168 Benchmark]: Toolchain (without parser) took 2248.51 ms. Allocated memory was 140.0 MB in the beginning and 217.1 MB in the end (delta: 77.1 MB). Free memory was 101.7 MB in the beginning and 114.6 MB in the end (delta: -13.0 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:37,611 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:26:37,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.70 ms. Allocated memory was 140.0 MB in the beginning and 217.1 MB in the end (delta: 77.1 MB). Free memory was 101.0 MB in the beginning and 203.3 MB in the end (delta: -102.3 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:37,613 INFO L168 Benchmark]: Boogie Preprocessor took 55.85 ms. Allocated memory is still 217.1 MB. Free memory was 203.3 MB in the beginning and 200.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:37,614 INFO L168 Benchmark]: RCFGBuilder took 371.96 ms. Allocated memory is still 217.1 MB. Free memory was 200.7 MB in the beginning and 183.0 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:37,615 INFO L168 Benchmark]: TraceAbstraction took 1293.89 ms. Allocated memory is still 217.1 MB. Free memory was 182.0 MB in the beginning and 114.6 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:37,620 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 516.70 ms. Allocated memory was 140.0 MB in the beginning and 217.1 MB in the end (delta: 77.1 MB). Free memory was 101.0 MB in the beginning and 203.3 MB in the end (delta: -102.3 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.85 ms. Allocated memory is still 217.1 MB. Free memory was 203.3 MB in the beginning and 200.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.96 ms. Allocated memory is still 217.1 MB. Free memory was 200.7 MB in the beginning and 183.0 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1293.89 ms. Allocated memory is still 217.1 MB. Free memory was 182.0 MB in the beginning and 114.6 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (a <= 4294967296 * (a / 4294967296) + 1 && 4294967296 * (a / 4294967296) < a) && a <= 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (a <= 4294967296 * (a / 4294967296) + 1 && 4294967296 * (a / 4294967296) < a) && a <= 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (a <= 4294967296 * (a / 4294967296) + 1 && 4294967296 * (a / 4294967296) < a) && a <= 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 76 SDslu, 16 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 88 HoareAnnotationTreeSize, 8 FomulaSimplifications, 126 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 2926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...