/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/jain_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:33:03,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:33:03,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:33:04,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:33:04,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:33:04,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:33:04,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:33:04,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:33:04,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:33:04,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:33:04,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:33:04,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:33:04,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:33:04,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:33:04,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:33:04,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:33:04,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:33:04,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:33:04,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:33:04,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:33:04,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:33:04,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:33:04,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:33:04,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:33:04,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:33:04,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:33:04,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:33:04,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:33:04,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:33:04,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:33:04,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:33:04,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:33:04,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:33:04,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:33:04,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:33:04,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:33:04,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:33:04,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:33:04,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:33:04,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:33:04,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:33:04,052 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 [2020-10-12 10:33:04,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:33:04,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:33:04,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:33:04,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:33:04,078 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:33:04,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:33:04,079 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:33:04,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:33:04,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:33:04,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:33:04,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:33:04,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:33:04,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:33:04,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:33:04,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:33:04,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:33:04,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:33:04,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:33:04,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:33:04,081 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:33:04,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:33:04,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:33:04,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:33:04,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:33:04,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:33:04,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:33:04,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:33:04,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:33:04,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:33:04,083 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:33:04,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:33:04,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:33:04,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:33:04,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:33:04,422 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:33:04,423 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_7-2.c [2020-10-12 10:33:04,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f17c2e15/4d5ca43cc06d40b5ab20e431ee67e9d8/FLAGac2fcc747 [2020-10-12 10:33:04,936 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:33:04,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/jain_7-2.c [2020-10-12 10:33:04,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f17c2e15/4d5ca43cc06d40b5ab20e431ee67e9d8/FLAGac2fcc747 [2020-10-12 10:33:05,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f17c2e15/4d5ca43cc06d40b5ab20e431ee67e9d8 [2020-10-12 10:33:05,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:33:05,329 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:33:05,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:33:05,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:33:05,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:33:05,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed69f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05, skipping insertion in model container [2020-10-12 10:33:05,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:33:05,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:33:05,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:33:05,577 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:33:05,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:33:05,605 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:33:05,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05 WrapperNode [2020-10-12 10:33:05,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:33:05,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:33:05,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:33:05,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:33:05,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (1/1) ... [2020-10-12 10:33:05,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:33:05,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:33:05,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:33:05,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:33:05,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (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 [2020-10-12 10:33:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:33:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:33:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:33:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:33:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:33:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 10:33:05,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:33:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:33:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:33:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:33:06,023 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:33:06,023 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 10:33:06,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:33:06 BoogieIcfgContainer [2020-10-12 10:33:06,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:33:06,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:33:06,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:33:06,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:33:06,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:33:05" (1/3) ... [2020-10-12 10:33:06,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbd03cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:33:06, skipping insertion in model container [2020-10-12 10:33:06,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:05" (2/3) ... [2020-10-12 10:33:06,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bbd03cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:33:06, skipping insertion in model container [2020-10-12 10:33:06,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:33:06" (3/3) ... [2020-10-12 10:33:06,037 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2020-10-12 10:33:06,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:33:06,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:33:06,072 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:33:06,098 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:33:06,098 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:33:06,098 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:33:06,099 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:33:06,099 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:33:06,099 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:33:06,099 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:33:06,099 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:33:06,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-12 10:33:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-12 10:33:06,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:06,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:06,128 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:06,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:06,134 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2020-10-12 10:33:06,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:06,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335255256] [2020-10-12 10:33:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:06,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:06,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 10:33:06,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 10:33:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 10:33:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 10:33:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:33:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:33:06,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:06,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:06,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:06,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:06,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:06,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:33:06,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:06,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:06,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:33:06,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335255256] [2020-10-12 10:33:06,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:06,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 10:33:06,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168508] [2020-10-12 10:33:06,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 10:33:06,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:06,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 10:33:06,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:33:06,825 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2020-10-12 10:33:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:08,993 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2020-10-12 10:33:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 10:33:08,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-12 10:33:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:09,004 INFO L225 Difference]: With dead ends: 33 [2020-10-12 10:33:09,004 INFO L226 Difference]: Without dead ends: 20 [2020-10-12 10:33:09,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 10:33:09,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-12 10:33:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-10-12 10:33:09,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-12 10:33:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-12 10:33:09,050 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-10-12 10:33:09,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:09,051 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-12 10:33:09,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 10:33:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-12 10:33:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-12 10:33:09,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:09,052 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:09,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:33:09,053 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:09,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:09,053 INFO L82 PathProgramCache]: Analyzing trace with hash 327764987, now seen corresponding path program 1 times [2020-10-12 10:33:09,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:09,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866990302] [2020-10-12 10:33:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:09,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:09,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:09,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 10:33:09,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-12 10:33:09,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:33:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 10:33:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 10:33:09,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:09,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:09,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:09,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:09,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:09,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:33:09,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:33:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:09,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:09,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:09,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:33:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 10:33:09,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:33:09,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:09,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:33:09,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866990302] [2020-10-12 10:33:09,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:33:09,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 10:33:09,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069454056] [2020-10-12 10:33:09,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 10:33:09,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:09,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 10:33:09,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 10:33:09,466 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2020-10-12 10:33:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:09,531 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-10-12 10:33:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 10:33:09,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-12 10:33:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:09,533 INFO L225 Difference]: With dead ends: 19 [2020-10-12 10:33:09,533 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 10:33:09,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:33:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 10:33:09,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 10:33:09,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 10:33:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 10:33:09,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-12 10:33:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:09,536 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 10:33:09,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 10:33:09,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 10:33:09,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 10:33:09,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:33:09,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 10:33:09,583 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-12 10:33:09,583 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 10:33:09,583 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 10:33:09,584 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-12 10:33:09,584 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 10:33:09,584 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 10:33:09,584 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 27) the Hoare annotation is: true [2020-10-12 10:33:09,584 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 27) no Hoare annotation was computed. [2020-10-12 10:33:09,585 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-10-12 10:33:09,585 INFO L264 CegarLoopResult]: At program point L24-1(lines 18 25) the Hoare annotation is: (<= (+ (* 4 main_~x~0) main_~z~0) (+ (* 2 main_~y~0) (* 4194304 (div (+ (* main_~x~0 4) (* main_~y~0 (- 2)) main_~z~0) 4194304)))) [2020-10-12 10:33:09,585 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2020-10-12 10:33:09,585 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 27) no Hoare annotation was computed. [2020-10-12 10:33:09,586 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2020-10-12 10:33:09,586 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2020-10-12 10:33:09,586 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-12 10:33:09,586 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-10-12 10:33:09,587 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-10-12 10:33:09,587 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2020-10-12 10:33:09,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:33:09 BoogieIcfgContainer [2020-10-12 10:33:09,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:33:09,610 INFO L168 Benchmark]: Toolchain (without parser) took 4280.04 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 100.2 MB in the beginning and 86.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:09,611 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-12 10:33:09,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.08 ms. Allocated memory is still 137.4 MB. Free memory was 100.0 MB in the beginning and 90.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:09,614 INFO L168 Benchmark]: Boogie Preprocessor took 112.84 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 90.6 MB in the beginning and 177.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:09,615 INFO L168 Benchmark]: RCFGBuilder took 307.71 ms. Allocated memory is still 198.7 MB. Free memory was 177.7 MB in the beginning and 165.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:09,616 INFO L168 Benchmark]: TraceAbstraction took 3578.67 ms. Allocated memory is still 198.7 MB. Free memory was 165.1 MB in the beginning and 86.0 MB in the end (delta: 79.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:09,621 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.08 ms. Allocated memory is still 137.4 MB. Free memory was 100.0 MB in the beginning and 90.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.84 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 90.6 MB in the beginning and 177.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 307.71 ms. Allocated memory is still 198.7 MB. Free memory was 177.7 MB in the beginning and 165.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3578.67 ms. Allocated memory is still 198.7 MB. Free memory was 165.1 MB in the beginning and 86.0 MB in the end (delta: 79.1 MB). Peak memory consumption was 79.1 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: 18]: Loop Invariant Derived loop invariant: 4 * x + z <= 2 * y + 4194304 * ((x * 4 + y * -2 + z) / 4194304) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 11 SDslu, 59 SDs, 0 SdLazy, 32 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 49 HoareAnnotationTreeSize, 9 FomulaSimplifications, 69 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 2568 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...