/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/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:41:07,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:41:07,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:41:08,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:41:08,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:41:08,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:41:08,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:41:08,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:41:08,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:41:08,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:41:08,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:41:08,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:41:08,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:41:08,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:41:08,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:41:08,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:41:08,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:41:08,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:41:08,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:41:08,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:41:08,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:41:08,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:41:08,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:41:08,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:41:08,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:41:08,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:41:08,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:41:08,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:41:08,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:41:08,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:41:08,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:41:08,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:41:08,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:41:08,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:41:08,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:41:08,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:41:08,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:41:08,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:41:08,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:41:08,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:41:08,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:41:08,112 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 13:41:08,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:41:08,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:41:08,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:41:08,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:41:08,164 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:41:08,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:41:08,165 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:41:08,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:41:08,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:41:08,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:41:08,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:41:08,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:41:08,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:41:08,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:41:08,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:41:08,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:41:08,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:41:08,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:41:08,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:41:08,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:41:08,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:41:08,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:41:08,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:41:08,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:41:08,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:41:08,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:41:08,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:41:08,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:41:08,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:41:08,171 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 13:41:08,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:41:08,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:41:08,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:41:08,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:41:08,693 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:41:08,694 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-09-25 13:41:08,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8341a6e8/f960133ac24b418fbc8161e33c282ea9/FLAG59eb61007 [2020-09-25 13:41:09,341 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:41:09,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2020-09-25 13:41:09,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8341a6e8/f960133ac24b418fbc8161e33c282ea9/FLAG59eb61007 [2020-09-25 13:41:09,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8341a6e8/f960133ac24b418fbc8161e33c282ea9 [2020-09-25 13:41:09,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:41:09,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:41:09,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:41:09,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:41:09,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:41:09,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:41:09" (1/1) ... [2020-09-25 13:41:09,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763ad0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:09, skipping insertion in model container [2020-09-25 13:41:09,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:41:09" (1/1) ... [2020-09-25 13:41:09,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:41:09,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:41:09,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:41:09,983 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:41:10,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:41:10,022 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:41:10,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10 WrapperNode [2020-09-25 13:41:10,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:41:10,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:41:10,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:41:10,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:41:10,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (1/1) ... [2020-09-25 13:41:10,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:41:10,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:41:10,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:41:10,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:41:10,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (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 13:41:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:41:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:41:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:41:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:41:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:41:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:41:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:41:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:41:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:41:10,532 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:41:10,533 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:41:10,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:41:10 BoogieIcfgContainer [2020-09-25 13:41:10,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:41:10,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:41:10,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:41:10,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:41:10,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:41:09" (1/3) ... [2020-09-25 13:41:10,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5339c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:41:10, skipping insertion in model container [2020-09-25 13:41:10,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:10" (2/3) ... [2020-09-25 13:41:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5339c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:41:10, skipping insertion in model container [2020-09-25 13:41:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:41:10" (3/3) ... [2020-09-25 13:41:10,552 INFO L109 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2020-09-25 13:41:10,563 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:41:10,574 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:41:10,596 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:41:10,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:41:10,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:41:10,628 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:41:10,628 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:41:10,628 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:41:10,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:41:10,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:41:10,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:41:10,650 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 13:41:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 13:41:10,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:10,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:10,660 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:10,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:10,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1562147583, now seen corresponding path program 1 times [2020-09-25 13:41:10,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:10,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69226430] [2020-09-25 13:41:10,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:10,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:10,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:41:10,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 13:41:10,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:10,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:41:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:41:10,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:41:10,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:41:11,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:11,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:11,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:11,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:41:11,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:41:11,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:11,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:11,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:11,127 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 13:41:11,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69226430] [2020-09-25 13:41:11,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:41:11,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:41:11,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297079790] [2020-09-25 13:41:11,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:41:11,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:11,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:41:11,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:41:11,159 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-09-25 13:41:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:41:11,230 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2020-09-25 13:41:11,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:41:11,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-09-25 13:41:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:41:11,249 INFO L225 Difference]: With dead ends: 105 [2020-09-25 13:41:11,249 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 13:41:11,255 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 13:41:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 13:41:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2020-09-25 13:41:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 13:41:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-09-25 13:41:11,311 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 23 [2020-09-25 13:41:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:41:11,312 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-09-25 13:41:11,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:41:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-09-25 13:41:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 13:41:11,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:11,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:11,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:41:11,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:11,316 INFO L82 PathProgramCache]: Analyzing trace with hash 42061886, now seen corresponding path program 1 times [2020-09-25 13:41:11,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:11,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392908022] [2020-09-25 13:41:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:11,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 13:41:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:41:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-09-25 13:41:11,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:11,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:41:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:41:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:41:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:41:12,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:12,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:12,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:12,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:41:12,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:12,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:41:12,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:12,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:12,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:12,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:12,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:12,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:41:12,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392908022] [2020-09-25 13:41:12,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:41:12,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:41:12,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020922161] [2020-09-25 13:41:12,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:41:12,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:12,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:41:12,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:41:12,121 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 7 states. [2020-09-25 13:41:12,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:41:12,283 INFO L93 Difference]: Finished difference Result 92 states and 103 transitions. [2020-09-25 13:41:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:41:12,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-25 13:41:12,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:41:12,286 INFO L225 Difference]: With dead ends: 92 [2020-09-25 13:41:12,286 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 13:41:12,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:41:12,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 13:41:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 51. [2020-09-25 13:41:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 13:41:12,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2020-09-25 13:41:12,300 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 27 [2020-09-25 13:41:12,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:41:12,300 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2020-09-25 13:41:12,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:41:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2020-09-25 13:41:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-25 13:41:12,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:12,302 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:12,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:41:12,303 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:12,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:12,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2023869189, now seen corresponding path program 2 times [2020-09-25 13:41:12,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:12,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605931248] [2020-09-25 13:41:12,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:12,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:12,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:12,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:12,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 13:41:12,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:41:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 13:41:12,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:12,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:41:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:41:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:41:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:12,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:12,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:12,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:41:12,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:12,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:12,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:12,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:12,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:12,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:41:12,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605931248] [2020-09-25 13:41:12,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:41:12,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:41:12,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414842890] [2020-09-25 13:41:12,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:41:12,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:12,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:41:12,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:41:12,809 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 7 states. [2020-09-25 13:41:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:41:12,919 INFO L93 Difference]: Finished difference Result 110 states and 124 transitions. [2020-09-25 13:41:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:41:12,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-09-25 13:41:12,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:41:12,921 INFO L225 Difference]: With dead ends: 110 [2020-09-25 13:41:12,921 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 13:41:12,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:41:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 13:41:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-09-25 13:41:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:41:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-09-25 13:41:12,931 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 31 [2020-09-25 13:41:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:41:12,931 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-09-25 13:41:12,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:41:12,931 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-09-25 13:41:12,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 13:41:12,933 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:12,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:12,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:41:12,933 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:12,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:12,934 INFO L82 PathProgramCache]: Analyzing trace with hash -909118664, now seen corresponding path program 3 times [2020-09-25 13:41:12,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:12,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482188390] [2020-09-25 13:41:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:13,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:13,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:13,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:13,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:41:13,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:41:13,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-09-25 13:41:13,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:13,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:41:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:41:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:41:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:13,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:13,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:13,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:13,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:41:13,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:13,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:13,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:41:13,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482188390] [2020-09-25 13:41:13,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:41:13,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:41:13,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718704850] [2020-09-25 13:41:13,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:41:13,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:13,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:41:13,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:41:13,871 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 9 states. [2020-09-25 13:41:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:41:14,041 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2020-09-25 13:41:14,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:41:14,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 13:41:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:41:14,043 INFO L225 Difference]: With dead ends: 113 [2020-09-25 13:41:14,043 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 13:41:14,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:41:14,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 13:41:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2020-09-25 13:41:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 13:41:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-09-25 13:41:14,052 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 35 [2020-09-25 13:41:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:41:14,052 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-09-25 13:41:14,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:41:14,053 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-09-25 13:41:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-25 13:41:14,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:41:14,054 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:41:14,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:41:14,055 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:41:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:41:14,055 INFO L82 PathProgramCache]: Analyzing trace with hash -460436747, now seen corresponding path program 4 times [2020-09-25 13:41:14,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:41:14,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473382861] [2020-09-25 13:41:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:41:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:14,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:14,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:15,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:15,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 13:41:15,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:41:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-25 13:41:15,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:15,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:41:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 13:41:15,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:41:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:15,560 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 24 [2020-09-25 13:41:15,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:41:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:41:15,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:41:15,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:41:15,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:41:15,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:41:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:41:15,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:41:15,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:41:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:41:15,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:41:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:41:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:41:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 13:41:15,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473382861] [2020-09-25 13:41:15,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:41:15,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:41:15,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689579786] [2020-09-25 13:41:15,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:41:15,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:41:15,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:41:15,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:41:15,796 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 10 states. [2020-09-25 13:41:18,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:41:18,313 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-09-25 13:41:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:41:18,314 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-09-25 13:41:18,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:41:18,315 INFO L225 Difference]: With dead ends: 71 [2020-09-25 13:41:18,315 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:41:18,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:41:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:41:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:41:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:41:18,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:41:18,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-09-25 13:41:18,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:41:18,317 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:41:18,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:41:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:41:18,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:41:18,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:41:18,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:41:20,753 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2020-09-25 13:41:23,285 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2020-09-25 13:41:23,522 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 13:41:23,523 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:41:23,523 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:41:23,523 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:41:23,523 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:41:23,523 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:41:23,524 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2020-09-25 13:41:23,524 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 13:41:23,524 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-09-25 13:41:23,524 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 13:41:23,524 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed. [2020-09-25 13:41:23,525 INFO L268 CegarLoopResult]: For program point L19-5(line 19) no Hoare annotation was computed. [2020-09-25 13:41:23,526 INFO L264 CegarLoopResult]: At program point L19-6(lines 19 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 13:41:23,526 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 13:41:23,526 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-25 13:41:23,527 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 13:41:23,527 INFO L268 CegarLoopResult]: For program point L20-4(line 20) no Hoare annotation was computed. [2020-09-25 13:41:23,527 INFO L264 CegarLoopResult]: At program point L20-5(lines 20 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 13:41:23,527 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 13:41:23,527 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-25 13:41:23,528 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 13:41:23,530 INFO L268 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed. [2020-09-25 13:41:23,530 INFO L268 CegarLoopResult]: For program point L21-5(line 21) no Hoare annotation was computed. [2020-09-25 13:41:23,530 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (or (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= main_~v~0 0)) (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472))))) [2020-09-25 13:41:23,531 INFO L264 CegarLoopResult]: At program point L21-7(line 21) the Hoare annotation is: (and (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (not (= main_~v~0 (let ((.cse1 (div main_~v~0 4))) (+ (* 4294967296 (div (+ main_~v~0 (* .cse1 (- 4))) 4294967296)) (* 4 .cse1)))))) [2020-09-25 13:41:23,531 INFO L268 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2020-09-25 13:41:23,531 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 13:41:23,531 INFO L268 CegarLoopResult]: For program point L17-4(line 17) no Hoare annotation was computed. [2020-09-25 13:41:23,531 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2020-09-25 13:41:23,531 INFO L268 CegarLoopResult]: For program point L17-5(line 17) no Hoare annotation was computed. [2020-09-25 13:41:23,534 INFO L264 CegarLoopResult]: At program point L17-6(lines 17 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 13:41:23,535 INFO L268 CegarLoopResult]: For program point L17-7(lines 17 23) no Hoare annotation was computed. [2020-09-25 13:41:23,535 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2020-09-25 13:41:23,535 INFO L268 CegarLoopResult]: For program point L22(lines 20 23) no Hoare annotation was computed. [2020-09-25 13:41:23,535 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 13:41:23,535 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 23) no Hoare annotation was computed. [2020-09-25 13:41:23,536 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 13:41:23,537 INFO L268 CegarLoopResult]: For program point L18-4(line 18) no Hoare annotation was computed. [2020-09-25 13:41:23,537 INFO L268 CegarLoopResult]: For program point L18-5(line 18) no Hoare annotation was computed. [2020-09-25 13:41:23,537 INFO L264 CegarLoopResult]: At program point L18-6(lines 18 23) the Hoare annotation is: (or (<= 1 (+ main_~v~0 (* 4294967296 (div (let ((.cse0 (* main_~v~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 (- 23)) 4) (- 1)) 1)) 3221225472)))) (<= main_~v~0 (+ (* 4294967296 (div main_~v~0 4294967296)) 9))) [2020-09-25 13:41:23,537 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 13:41:23,537 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 13:41:23,538 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 13:41:23,538 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 13:41:23,538 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 13:41:23,538 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 13:41:23,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:41:23 BoogieIcfgContainer [2020-09-25 13:41:23,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:41:23,599 INFO L168 Benchmark]: Toolchain (without parser) took 13892.94 ms. Allocated memory was 140.0 MB in the beginning and 280.5 MB in the end (delta: 140.5 MB). Free memory was 103.1 MB in the beginning and 207.3 MB in the end (delta: -104.2 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:41:23,600 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 13:41:23,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.03 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 92.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:41:23,603 INFO L168 Benchmark]: Boogie Preprocessor took 114.34 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.7 MB in the beginning and 180.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:41:23,604 INFO L168 Benchmark]: RCFGBuilder took 402.10 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 165.8 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:41:23,606 INFO L168 Benchmark]: TraceAbstraction took 13052.41 ms. Allocated memory was 202.4 MB in the beginning and 280.5 MB in the end (delta: 78.1 MB). Free memory was 165.8 MB in the beginning and 207.3 MB in the end (delta: -41.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:41:23,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.03 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 92.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.34 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.7 MB in the beginning and 180.8 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.10 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 165.8 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13052.41 ms. Allocated memory was 202.4 MB in the beginning and 280.5 MB in the end (delta: 78.1 MB). Free memory was 165.8 MB in the beginning and 207.3 MB in the end (delta: -41.5 MB). Peak memory consumption was 36.6 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: 17]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (0 < v / 4294967296 + 1 && v <= 0) || 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 <= v + 4294967296 * ((v * -1 + (v * -1 + -23) / 4 * -1 + 1) / 3221225472) || v <= 4294967296 * (v / 4294967296) + 9 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 203 SDslu, 1089 SDs, 0 SdLazy, 229 SolverSat, 25 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=4, 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, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 29 NumberOfFragments, 210 HoareAnnotationTreeSize, 15 FomulaSimplifications, 111 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 5.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 18796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 24/50 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...