/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:57:42,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:57:42,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:57:42,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:57:42,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:57:42,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:57:42,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:57:42,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:57:42,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:57:42,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:57:42,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:57:42,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:57:42,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:57:42,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:57:42,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:57:42,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:57:42,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:57:42,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:57:42,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:57:43,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:57:43,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:57:43,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:57:43,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:57:43,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:57:43,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:57:43,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:57:43,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:57:43,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:57:43,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:57:43,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:57:43,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:57:43,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:57:43,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:57:43,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:57:43,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:57:43,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:57:43,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:57:43,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:57:43,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:57:43,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:57:43,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:57:43,032 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 [2020-09-24 22:57:43,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:57:43,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:57:43,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:57:43,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:57:43,084 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:57:43,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:57:43,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:57:43,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:57:43,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:57:43,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:57:43,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:57:43,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:57:43,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:57:43,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:57:43,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:57:43,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:57:43,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:57:43,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:57:43,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:57:43,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:57:43,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:57:43,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:57:43,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:57:43,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:57:43,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:57:43,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:57:43,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:57:43,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:57:43,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:57:43,091 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:57:43,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:57:43,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:57:43,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:57:43,634 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:57:43,634 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:57:43,637 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2020-09-24 22:57:43,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91a2759b9/250d6b3c72f54d5d9355e26adf709436/FLAG8d40a90e9 [2020-09-24 22:57:44,259 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:57:44,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invariants/odd.c [2020-09-24 22:57:44,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91a2759b9/250d6b3c72f54d5d9355e26adf709436/FLAG8d40a90e9 [2020-09-24 22:57:44,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91a2759b9/250d6b3c72f54d5d9355e26adf709436 [2020-09-24 22:57:44,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:57:44,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:57:44,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:57:44,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:57:44,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:57:44,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:44,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc17a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44, skipping insertion in model container [2020-09-24 22:57:44,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:44,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:57:44,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:57:44,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:57:44,907 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:57:44,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:57:44,944 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:57:44,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44 WrapperNode [2020-09-24 22:57:44,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:57:44,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:57:44,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:57:44,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:57:44,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:44,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:45,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:45,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:45,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:45,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:45,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (1/1) ... [2020-09-24 22:57:45,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:57:45,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:57:45,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:57:45,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:57:45,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (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 [2020-09-24 22:57:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:57:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:57:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 22:57:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:57:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:57:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:57:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 22:57:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:57:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:57:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:57:45,358 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:57:45,359 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 22:57:45,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:45 BoogieIcfgContainer [2020-09-24 22:57:45,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:57:45,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:57:45,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:57:45,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:57:45,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:57:44" (1/3) ... [2020-09-24 22:57:45,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:45, skipping insertion in model container [2020-09-24 22:57:45,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44" (2/3) ... [2020-09-24 22:57:45,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:45, skipping insertion in model container [2020-09-24 22:57:45,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:45" (3/3) ... [2020-09-24 22:57:45,372 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2020-09-24 22:57:45,381 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:57:45,390 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:57:45,411 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:57:45,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:57:45,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:57:45,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:57:45,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:57:45,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:57:45,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:57:45,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:57:45,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:57:45,458 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-24 22:57:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-24 22:57:45,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:45,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:45,466 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:45,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:45,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times [2020-09-24 22:57:45,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:45,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669266650] [2020-09-24 22:57:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:45,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:45,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 22:57:45,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:57:45,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 22:57:45,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 22:57:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:45,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:57:45,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:45,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:45,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:45,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:57:45,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:45,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:45,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669266650] [2020-09-24 22:57:45,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:57:45,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-24 22:57:45,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30959608] [2020-09-24 22:57:45,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-24 22:57:45,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:45,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-24 22:57:45,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-24 22:57:45,810 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-09-24 22:57:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:45,837 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-09-24 22:57:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-24 22:57:45,838 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-24 22:57:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:45,849 INFO L225 Difference]: With dead ends: 34 [2020-09-24 22:57:45,849 INFO L226 Difference]: Without dead ends: 15 [2020-09-24 22:57:45,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-24 22:57:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-09-24 22:57:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-09-24 22:57:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-24 22:57:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-09-24 22:57:45,893 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-09-24 22:57:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:45,893 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-09-24 22:57:45,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-24 22:57:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-09-24 22:57:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-24 22:57:45,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:45,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:45,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:57:45,895 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:45,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times [2020-09-24 22:57:45,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:45,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285165560] [2020-09-24 22:57:45,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:45,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:45,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:45,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:57:45,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:45,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 22:57:45,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:57:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:57:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:57:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:57:46,377 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 13 [2020-09-24 22:57:46,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:46,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:46,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:46,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:57:46,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:46,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:46,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:57:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:46,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285165560] [2020-09-24 22:57:46,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:57:46,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:57:46,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328024836] [2020-09-24 22:57:46,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:57:46,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:46,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:57:46,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:57:46,430 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-09-24 22:57:46,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:46,463 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-09-24 22:57:46,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:57:46,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-24 22:57:46,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:46,464 INFO L225 Difference]: With dead ends: 15 [2020-09-24 22:57:46,464 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:57:46,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:57:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:57:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:57:46,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:57:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:57:46,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-24 22:57:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:46,467 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:57:46,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:57:46,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:57:46,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:57:46,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:57:46,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 22:57:46,517 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 22:57:46,517 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:57:46,517 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:57:46,518 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 22:57:46,518 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 22:57:46,518 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:57:46,518 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true [2020-09-24 22:57:46,518 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed. [2020-09-24 22:57:46,519 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 22:57:46,519 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed. [2020-09-24 22:57:46,519 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 22:57:46,519 INFO L268 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-09-24 22:57:46,519 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 22:57:46,519 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-24 22:57:46,520 INFO L264 CegarLoopResult]: At program point L11-5(lines 11 13) the Hoare annotation is: (not (= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) main_~x~0) 4294967296)))))) [2020-09-24 22:57:46,520 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (not (= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) main_~x~0) 4294967296)))))) [2020-09-24 22:57:46,520 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 22:57:46,520 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 22:57:46,521 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 22:57:46,521 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 22:57:46,521 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 22:57:46,521 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 22:57:46,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:57:46 BoogieIcfgContainer [2020-09-24 22:57:46,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:57:46,545 INFO L168 Benchmark]: Toolchain (without parser) took 1945.73 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 104.0 MB in the beginning and 113.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:46,546 INFO L168 Benchmark]: CDTParser took 1.86 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:57:46,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.32 ms. Allocated memory is still 147.8 MB. Free memory was 103.4 MB in the beginning and 93.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:46,549 INFO L168 Benchmark]: Boogie Preprocessor took 129.13 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.8 MB in the beginning and 182.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:46,550 INFO L168 Benchmark]: RCFGBuilder took 287.93 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 171.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:46,550 INFO L168 Benchmark]: TraceAbstraction took 1178.47 ms. Allocated memory is still 203.9 MB. Free memory was 170.5 MB in the beginning and 113.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:46,554 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.86 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.32 ms. Allocated memory is still 147.8 MB. Free memory was 103.4 MB in the beginning and 93.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.13 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.8 MB in the beginning and 182.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.93 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 171.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1178.47 ms. Allocated memory is still 203.9 MB. Free memory was 170.5 MB in the beginning and 113.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 11]: Loop Invariant Derived loop invariant: !(x == 2 * (x / 2) + 4294967296 * ((x / 2 * -2 + x) / 4294967296)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 3 SDslu, 26 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 45 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...