/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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-acceleration/const_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:39:25,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:39:25,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:39:25,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:39:25,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:39:25,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:39:25,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:39:25,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:39:25,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:39:25,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:39:25,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:39:25,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:39:25,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:39:25,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:39:25,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:39:25,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:39:25,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:39:25,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:39:25,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:39:25,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:39:25,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:39:25,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:39:25,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:39:25,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:39:25,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:39:25,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:39:25,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:39:25,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:39:25,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:39:25,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:39:25,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:39:25,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:39:25,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:39:25,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:39:25,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:39:25,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:39:25,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:39:25,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:39:25,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:39:25,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:39:25,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:39:25,190 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 13:39:25,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:39:25,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:39:25,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:39:25,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:39:25,227 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:39:25,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:39:25,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:39:25,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:39:25,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:39:25,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:39:25,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:39:25,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:39:25,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:39:25,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:39:25,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:39:25,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:39:25,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:39:25,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:39:25,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:39:25,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:39:25,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:39:25,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:39:25,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:39:25,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:39:25,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:39:25,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:39:25,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:39:25,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:39:25,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:39:25,233 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:39:25,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:39:25,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:39:25,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:39:25,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:39:25,740 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:39:25,741 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_1-1.c [2020-09-25 13:39:25,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c42867be/bf60a91ec27944c9b7fe7bf2318887f8/FLAGa0735c762 [2020-09-25 13:39:26,401 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:39:26,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/const_1-1.c [2020-09-25 13:39:26,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c42867be/bf60a91ec27944c9b7fe7bf2318887f8/FLAGa0735c762 [2020-09-25 13:39:26,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c42867be/bf60a91ec27944c9b7fe7bf2318887f8 [2020-09-25 13:39:26,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:39:26,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:39:26,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:39:26,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:39:26,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:39:26,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:26" (1/1) ... [2020-09-25 13:39:26,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419c06a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:26, skipping insertion in model container [2020-09-25 13:39:26,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:26" (1/1) ... [2020-09-25 13:39:26,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:39:26,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:39:27,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:39:27,031 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:39:27,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:39:27,069 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:39:27,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27 WrapperNode [2020-09-25 13:39:27,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:39:27,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:39:27,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:39:27,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:39:27,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (1/1) ... [2020-09-25 13:39:27,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:39:27,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:39:27,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:39:27,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:39:27,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (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 13:39:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:39:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:39:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:39:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:39:27,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:39:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:39:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:39:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:39:27,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:39:27,458 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:39:27,458 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:39:27,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:27 BoogieIcfgContainer [2020-09-25 13:39:27,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:39:27,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:39:27,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:39:27,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:39:27,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:26" (1/3) ... [2020-09-25 13:39:27,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38146b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:27, skipping insertion in model container [2020-09-25 13:39:27,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:27" (2/3) ... [2020-09-25 13:39:27,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38146b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:27, skipping insertion in model container [2020-09-25 13:39:27,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:27" (3/3) ... [2020-09-25 13:39:27,472 INFO L109 eAbstractionObserver]: Analyzing ICFG const_1-1.c [2020-09-25 13:39:27,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:39:27,494 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:39:27,515 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:39:27,543 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:39:27,543 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:39:27,543 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:39:27,544 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:39:27,544 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:39:27,544 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:39:27,544 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:39:27,544 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:39:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-25 13:39:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 13:39:27,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:27,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:39:27,577 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:27,585 INFO L82 PathProgramCache]: Analyzing trace with hash 493765703, now seen corresponding path program 1 times [2020-09-25 13:39:27,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:27,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514692963] [2020-09-25 13:39:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:27,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:27,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:27,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 13:39:27,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 13:39:27,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:27,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:39:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:27,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:39:27,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:27,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:27,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:27,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:39:27,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:27,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:27,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:27,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:27,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:27,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:27,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:27,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:27,805 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 13:39:27,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514692963] [2020-09-25 13:39:27,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:27,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-25 13:39:27,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511629493] [2020-09-25 13:39:27,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-25 13:39:27,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:27,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-25 13:39:27,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 13:39:27,835 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-09-25 13:39:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:27,860 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2020-09-25 13:39:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-25 13:39:27,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-09-25 13:39:27,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:27,870 INFO L225 Difference]: With dead ends: 33 [2020-09-25 13:39:27,870 INFO L226 Difference]: Without dead ends: 16 [2020-09-25 13:39:27,874 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 [2020-09-25 13:39:27,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-09-25 13:39:27,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-09-25 13:39:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-09-25 13:39:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-09-25 13:39:27,913 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-09-25 13:39:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:27,914 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-09-25 13:39:27,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-25 13:39:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-09-25 13:39:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 13:39:27,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:27,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:39:27,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:39:27,916 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash 486377535, now seen corresponding path program 1 times [2020-09-25 13:39:27,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:27,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710430086] [2020-09-25 13:39:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:27,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:28,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:28,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 13:39:28,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:28,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 13:39:28,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:28,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:28,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:39:28,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:39:28,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:39:28,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:28,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:28,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:28,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:28,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:39:28,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:28,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:28,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:28,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:28,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:28,096 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 13:39:28,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710430086] [2020-09-25 13:39:28,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:28,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:39:28,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498780722] [2020-09-25 13:39:28,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:39:28,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:28,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:39:28,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:39:28,101 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2020-09-25 13:39:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:28,130 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-09-25 13:39:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:39:28,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-25 13:39:28,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:28,133 INFO L225 Difference]: With dead ends: 25 [2020-09-25 13:39:28,133 INFO L226 Difference]: Without dead ends: 20 [2020-09-25 13:39:28,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:39:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-09-25 13:39:28,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-09-25 13:39:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-09-25 13:39:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-09-25 13:39:28,143 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-09-25 13:39:28,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:28,143 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-09-25 13:39:28,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:39:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-09-25 13:39:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 13:39:28,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:28,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:39:28,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:39:28,146 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:28,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:28,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1748013841, now seen corresponding path program 1 times [2020-09-25 13:39:28,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:28,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776137996] [2020-09-25 13:39:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:28,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:28,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:28,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:28,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:39:28,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:39:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 13:39:28,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:28,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:39:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:39:28,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:39:28,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:39:28,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:28,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:28,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:28,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:39:28,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:28,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:39:28,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:28,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:39:28,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:39:28,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776137996] [2020-09-25 13:39:28,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:39:28,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:39:28,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16236572] [2020-09-25 13:39:28,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:39:28,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:28,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:39:28,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:39:28,814 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-09-25 13:39:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:28,839 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-09-25 13:39:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:39:28,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 13:39:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:28,841 INFO L225 Difference]: With dead ends: 18 [2020-09-25 13:39:28,841 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:39:28,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:39:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:39:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:39:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:39:28,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:39:28,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-25 13:39:28,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:28,843 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:39:28,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:39:28,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:39:28,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:39:28,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:39:28,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:39:28,892 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 13:39:28,892 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:39:28,892 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:39:28,893 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:39:28,893 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:39:28,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:39:28,893 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2020-09-25 13:39:28,893 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2020-09-25 13:39:28,894 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 13:39:28,894 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 13:39:28,894 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 13:39:28,894 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 13:39:28,894 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2020-09-25 13:39:28,894 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 13:39:28,895 INFO L264 CegarLoopResult]: At program point L14-2(lines 14 17) the Hoare annotation is: (or (and (<= main_~y~0 0) (<= 0 main_~y~0)) (= main_~x~0 (* 4294967296 (div main_~x~0 4294967296)))) [2020-09-25 13:39:28,895 INFO L264 CegarLoopResult]: At program point L14-3(lines 14 17) the Hoare annotation is: (= main_~x~0 (* 4294967296 (div main_~x~0 4294967296))) [2020-09-25 13:39:28,895 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 13:39:28,895 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 13:39:28,896 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 13:39:28,896 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 13:39:28,896 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 13:39:28,896 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 13:39:28,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:39:28 BoogieIcfgContainer [2020-09-25 13:39:28,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:39:28,923 INFO L168 Benchmark]: Toolchain (without parser) took 2156.50 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 102.9 MB in the beginning and 102.0 MB in the end (delta: 939.6 kB). Peak memory consumption was 61.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:28,924 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 121.2 MB in the beginning and 120.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 13:39:28,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.92 ms. Allocated memory is still 143.1 MB. Free memory was 102.1 MB in the beginning and 92.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:28,926 INFO L168 Benchmark]: Boogie Preprocessor took 129.25 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 92.9 MB in the beginning and 182.8 MB in the end (delta: -89.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:28,927 INFO L168 Benchmark]: RCFGBuilder took 262.46 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 171.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:28,928 INFO L168 Benchmark]: TraceAbstraction took 1455.79 ms. Allocated memory is still 203.9 MB. Free memory was 171.0 MB in the beginning and 102.0 MB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:28,932 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 143.1 MB. Free memory was 121.2 MB in the beginning and 120.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.92 ms. Allocated memory is still 143.1 MB. Free memory was 102.1 MB in the beginning and 92.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.25 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 92.9 MB in the beginning and 182.8 MB in the end (delta: -89.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 262.46 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 171.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1455.79 ms. Allocated memory is still 203.9 MB. Free memory was 171.0 MB in the beginning and 102.0 MB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 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: 14]: Loop Invariant Derived loop invariant: (y <= 0 && 0 <= y) || x == 4294967296 * (x / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 5 SDslu, 47 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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...