/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/jain_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:00:12,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:00:12,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:00:12,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:00:12,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:00:12,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:00:12,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:00:12,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:00:12,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:00:12,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:00:12,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:00:12,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:00:12,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:00:12,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:00:12,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:00:12,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:00:12,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:00:12,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:00:12,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:00:12,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:00:12,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:00:12,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:00:12,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:00:12,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:00:12,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:00:12,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:00:12,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:00:12,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:00:12,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:00:12,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:00:12,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:00:12,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:00:12,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:00:12,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:00:12,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:00:12,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:00:12,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:00:12,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:00:12,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:00:12,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:00:12,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:00:12,736 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 02:00:12,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:00:12,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:00:12,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:00:12,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:00:12,795 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:00:12,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:00:12,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:00:12,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:00:12,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:00:12,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:00:12,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:00:12,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:00:12,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:00:12,799 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:00:12,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:00:12,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:00:12,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:00:12,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:00:12,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:00:12,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:00:12,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:00:12,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:12,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:00:12,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:00:12,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:00:12,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:00:12,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:00:12,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:00:12,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:00:12,803 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:00:13,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:00:13,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:00:13,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:00:13,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:00:13,311 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:00:13,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_2-1.c [2020-09-25 02:00:13,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3e1751dd/340b1f2510ea4b7da3a70d05f0ef0f05/FLAG0dbc50a54 [2020-09-25 02:00:13,933 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:00:13,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/jain_2-1.c [2020-09-25 02:00:13,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3e1751dd/340b1f2510ea4b7da3a70d05f0ef0f05/FLAG0dbc50a54 [2020-09-25 02:00:14,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3e1751dd/340b1f2510ea4b7da3a70d05f0ef0f05 [2020-09-25 02:00:14,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:00:14,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:00:14,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:14,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:00:14,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:00:14,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70996f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14, skipping insertion in model container [2020-09-25 02:00:14,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:00:14,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:00:14,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:14,574 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:00:14,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:14,605 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:00:14,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14 WrapperNode [2020-09-25 02:00:14,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:14,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:00:14,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:00:14,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:00:14,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (1/1) ... [2020-09-25 02:00:14,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:00:14,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:00:14,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:00:14,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:00:14,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (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 02:00:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:00:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:00:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:00:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:00:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:00:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 02:00:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:00:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:00:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:00:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:00:14,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:00:14,992 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 02:00:14,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:14 BoogieIcfgContainer [2020-09-25 02:00:14,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:00:14,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:00:14,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:00:15,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:00:15,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:00:14" (1/3) ... [2020-09-25 02:00:15,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b2d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:15, skipping insertion in model container [2020-09-25 02:00:15,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:14" (2/3) ... [2020-09-25 02:00:15,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b2d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:15, skipping insertion in model container [2020-09-25 02:00:15,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:14" (3/3) ... [2020-09-25 02:00:15,007 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_2-1.c [2020-09-25 02:00:15,019 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:00:15,030 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:00:15,051 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:00:15,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:00:15,083 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:00:15,083 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:00:15,083 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:00:15,083 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:00:15,083 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:00:15,084 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:00:15,084 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:00:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 02:00:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 02:00:15,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:15,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:15,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:15,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:15,120 INFO L82 PathProgramCache]: Analyzing trace with hash -926636985, now seen corresponding path program 1 times [2020-09-25 02:00:15,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:15,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717377281] [2020-09-25 02:00:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:15,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:15,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:15,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 02:00:15,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:15,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 02:00:15,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:00:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 02:00:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:00:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:00:15,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:15,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:15,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:15,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:15,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:15,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:15,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:15,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:15,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:15,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:15,697 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 02:00:15,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717377281] [2020-09-25 02:00:15,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:15,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:00:15,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126428365] [2020-09-25 02:00:15,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:00:15,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:15,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:00:15,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:00:15,735 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-09-25 02:00:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:15,903 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2020-09-25 02:00:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:00:15,905 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-09-25 02:00:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:15,913 INFO L225 Difference]: With dead ends: 37 [2020-09-25 02:00:15,913 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:00:15,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:00:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:00:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:00:15,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:00:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:00:15,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-25 02:00:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:15,945 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:00:15,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:00:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:00:15,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:00:15,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:00:15,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:00:16,017 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 02:00:16,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:00:16,018 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:00:16,018 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:00:16,018 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:00:16,018 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:00:16,018 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2020-09-25 02:00:16,019 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2020-09-25 02:00:16,019 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-09-25 02:00:16,019 INFO L264 CegarLoopResult]: At program point L23-1(lines 17 24) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-09-25 02:00:16,020 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 02:00:16,020 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 02:00:16,020 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 02:00:16,021 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 02:00:16,021 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 02:00:16,021 INFO L268 CegarLoopResult]: For program point L17-2(lines 17 24) no Hoare annotation was computed. [2020-09-25 02:00:16,021 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 02:00:16,021 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2020-09-25 02:00:16,021 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 02:00:16,022 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2020-09-25 02:00:16,022 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-25 02:00:16,023 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 02:00:16,023 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-09-25 02:00:16,024 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 02:00:16,024 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2020-09-25 02:00:16,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:00:16 BoogieIcfgContainer [2020-09-25 02:00:16,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:00:16,056 INFO L168 Benchmark]: Toolchain (without parser) took 1754.27 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 123.3 MB in the end (delta: -21.2 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:16,060 INFO L168 Benchmark]: CDTParser took 0.24 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:00:16,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.20 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 92.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:16,063 INFO L168 Benchmark]: Boogie Preprocessor took 112.97 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 182.4 MB in the end (delta: -90.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:16,069 INFO L168 Benchmark]: RCFGBuilder took 275.99 ms. Allocated memory is still 202.4 MB. Free memory was 182.4 MB in the beginning and 170.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:16,070 INFO L168 Benchmark]: TraceAbstraction took 1053.73 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 123.3 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:16,080 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.20 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 92.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.97 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 182.4 MB in the end (delta: -90.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 275.99 ms. Allocated memory is still 202.4 MB. Free memory was 182.4 MB in the beginning and 170.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1053.73 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 123.3 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 17]: Loop Invariant Derived loop invariant: x + 2 <= y + 2 * ((x + y * -1 + 2) / 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 11 SDslu, 54 SDs, 0 SdLazy, 35 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 11 NumberOfFragments, 37 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 2016 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...