/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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/mono-crafted_12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:36:44,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:36:44,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:36:44,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:36:44,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:36:44,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:36:44,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:36:44,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:36:44,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:36:44,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:36:44,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:36:44,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:36:44,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:36:44,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:36:44,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:36:44,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:36:44,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:36:44,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:36:44,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:36:44,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:36:44,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:36:44,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:36:44,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:36:44,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:36:44,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:36:44,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:36:44,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:36:44,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:36:44,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:36:44,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:36:44,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:36:44,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:36:44,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:36:44,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:36:44,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:36:44,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:36:44,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:36:44,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:36:44,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:36:44,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:36:44,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:36:44,968 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 04:36:45,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:36:45,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:36:45,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:36:45,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:36:45,014 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:36:45,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:36:45,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:36:45,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:36:45,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:36:45,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:36:45,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:36:45,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:36:45,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:36:45,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:36:45,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:36:45,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:36:45,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:36:45,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:36:45,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:36:45,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:36:45,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:36:45,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:36:45,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:36:45,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:36:45,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:36:45,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:36:45,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:36:45,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:36:45,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:36:45,022 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:36:45,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:36:45,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:36:45,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:36:45,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:36:45,542 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:36:45,543 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_12.c [2020-09-25 04:36:45,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82db2a678/09db67b1d6784ec9bb466a76dd85a868/FLAG2a5be2306 [2020-09-25 04:36:46,114 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:36:46,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/mono-crafted_12.c [2020-09-25 04:36:46,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82db2a678/09db67b1d6784ec9bb466a76dd85a868/FLAG2a5be2306 [2020-09-25 04:36:46,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82db2a678/09db67b1d6784ec9bb466a76dd85a868 [2020-09-25 04:36:46,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:36:46,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:36:46,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:36:46,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:36:46,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:36:46,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d8fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46, skipping insertion in model container [2020-09-25 04:36:46,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:36:46,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:36:46,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:36:46,846 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:36:46,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:36:46,888 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:36:46,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46 WrapperNode [2020-09-25 04:36:46,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:36:46,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:36:46,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:36:46,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:36:46,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:46,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (1/1) ... [2020-09-25 04:36:47,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:36:47,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:36:47,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:36:47,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:36:47,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (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 04:36:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:36:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:36:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 04:36:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:36:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:36:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 04:36:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:36:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:36:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:36:47,291 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:36:47,292 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:36:47,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:36:47 BoogieIcfgContainer [2020-09-25 04:36:47,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:36:47,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:36:47,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:36:47,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:36:47,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:36:46" (1/3) ... [2020-09-25 04:36:47,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea4fe44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:36:47, skipping insertion in model container [2020-09-25 04:36:47,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:36:46" (2/3) ... [2020-09-25 04:36:47,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea4fe44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:36:47, skipping insertion in model container [2020-09-25 04:36:47,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:36:47" (3/3) ... [2020-09-25 04:36:47,308 INFO L109 eAbstractionObserver]: Analyzing ICFG mono-crafted_12.c [2020-09-25 04:36:47,321 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:36:47,332 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:36:47,367 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:36:47,407 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:36:47,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:36:47,408 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:36:47,408 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:36:47,408 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:36:47,408 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:36:47,409 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:36:47,409 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:36:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 04:36:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 04:36:47,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:47,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:47,445 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash -103545344, now seen corresponding path program 1 times [2020-09-25 04:36:47,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:47,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182148844] [2020-09-25 04:36:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:47,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:47,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:47,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:36:47,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:36:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 04:36:47,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:47,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:36:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:36:47,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:47,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:36:47,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:36:47,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:47,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:47,968 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 04:36:47,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182148844] [2020-09-25 04:36:47,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:47,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-25 04:36:47,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289234847] [2020-09-25 04:36:47,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-25 04:36:47,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:48,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-25 04:36:48,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 04:36:48,005 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-09-25 04:36:48,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:48,044 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-09-25 04:36:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-25 04:36:48,046 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-09-25 04:36:48,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:48,058 INFO L225 Difference]: With dead ends: 37 [2020-09-25 04:36:48,058 INFO L226 Difference]: Without dead ends: 18 [2020-09-25 04:36:48,064 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 04:36:48,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-25 04:36:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-09-25 04:36:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-25 04:36:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-09-25 04:36:48,115 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2020-09-25 04:36:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:48,117 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-09-25 04:36:48,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-25 04:36:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-09-25 04:36:48,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 04:36:48,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:48,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:48,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:36:48,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash -116474638, now seen corresponding path program 1 times [2020-09-25 04:36:48,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:48,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064965120] [2020-09-25 04:36:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:48,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:48,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:48,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:48,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:36:48,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:36:48,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 04:36:48,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:48,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:48,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:36:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:36:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:36:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:48,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:48,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:48,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:36:48,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:48,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:48,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:48,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:48,583 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 04:36:48,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064965120] [2020-09-25 04:36:48,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:48,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:36:48,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784550304] [2020-09-25 04:36:48,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:36:48,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:48,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:36:48,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:36:48,588 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2020-09-25 04:36:48,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:48,661 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-09-25 04:36:48,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:36:48,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-25 04:36:48,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:48,663 INFO L225 Difference]: With dead ends: 33 [2020-09-25 04:36:48,664 INFO L226 Difference]: Without dead ends: 22 [2020-09-25 04:36:48,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:36:48,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-25 04:36:48,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-09-25 04:36:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-09-25 04:36:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-09-25 04:36:48,672 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2020-09-25 04:36:48,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:48,673 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-09-25 04:36:48,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:36:48,673 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-09-25 04:36:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 04:36:48,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:36:48,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:36:48,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:36:48,675 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:36:48,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:36:48,676 INFO L82 PathProgramCache]: Analyzing trace with hash -992023844, now seen corresponding path program 1 times [2020-09-25 04:36:48,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:36:48,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164947252] [2020-09-25 04:36:48,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:36:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:48,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:49,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:36:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:36:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-25 04:36:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:49,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:36:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 04:36:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 04:36:49,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:49,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:36:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:36:49,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:36:49,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:36:49,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:36:49,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:36:49,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:36:49,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:36:49,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:36:49,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:36:49,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:36:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:36:49,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:36:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:36:49,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164947252] [2020-09-25 04:36:49,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:36:49,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:36:49,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810522668] [2020-09-25 04:36:49,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:36:49,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:36:49,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:36:49,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:36:49,366 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 5 states. [2020-09-25 04:36:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:36:49,389 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-09-25 04:36:49,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:36:49,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 04:36:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:36:49,391 INFO L225 Difference]: With dead ends: 20 [2020-09-25 04:36:49,391 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:36:49,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:36:49,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:36:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:36:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:36:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:36:49,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-25 04:36:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:36:49,393 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:36:49,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:36:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:36:49,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:36:49,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:36:49,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:36:49,443 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 04:36:49,443 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:36:49,443 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 04:36:49,443 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 04:36:49,443 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 04:36:49,444 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 04:36:49,444 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 15) no Hoare annotation was computed. [2020-09-25 04:36:49,444 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 04:36:49,444 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 15) no Hoare annotation was computed. [2020-09-25 04:36:49,444 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 04:36:49,444 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 04:36:49,445 INFO L268 CegarLoopResult]: For program point L9(lines 9 10) no Hoare annotation was computed. [2020-09-25 04:36:49,445 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 04:36:49,445 INFO L268 CegarLoopResult]: For program point L9-2(lines 9 10) no Hoare annotation was computed. [2020-09-25 04:36:49,445 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 15) the Hoare annotation is: true [2020-09-25 04:36:49,445 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 04:36:49,445 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 04:36:49,446 INFO L264 CegarLoopResult]: At program point L8-2(lines 8 12) the Hoare annotation is: (and (<= main_~z~0 (let ((.cse0 (div main_~z~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~z~0 (* .cse0 (- 2))) 4294967296))))) (<= 0 main_~z~0)) [2020-09-25 04:36:49,446 INFO L264 CegarLoopResult]: At program point L8-3(lines 8 12) the Hoare annotation is: (and (<= main_~z~0 (let ((.cse0 (div main_~z~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~z~0 (* .cse0 (- 2))) 4294967296))))) (<= 0 main_~z~0)) [2020-09-25 04:36:49,446 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 04:36:49,446 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 04:36:49,446 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 04:36:49,447 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 04:36:49,447 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 04:36:49,447 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 04:36:49,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:36:49 BoogieIcfgContainer [2020-09-25 04:36:49,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:36:49,473 INFO L168 Benchmark]: Toolchain (without parser) took 2996.25 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 101.4 MB in the beginning and 160.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:36:49,474 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:36:49,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.13 ms. Allocated memory is still 138.9 MB. Free memory was 100.7 MB in the beginning and 91.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:36:49,476 INFO L168 Benchmark]: Boogie Preprocessor took 115.54 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 91.4 MB in the beginning and 181.4 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:36:49,477 INFO L168 Benchmark]: RCFGBuilder took 292.06 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 169.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:36:49,478 INFO L168 Benchmark]: TraceAbstraction took 2170.09 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.9 MB in the beginning and 160.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:36:49,482 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 409.13 ms. Allocated memory is still 138.9 MB. Free memory was 100.7 MB in the beginning and 91.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.54 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 91.4 MB in the beginning and 181.4 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 292.06 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 169.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2170.09 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.9 MB in the beginning and 160.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 8]: Loop Invariant Derived loop invariant: z <= 2 * (z / 2) + 4294967296 * ((z + z / 2 * -2) / 4294967296) && 0 <= z - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 10 SDslu, 56 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 51 HoareAnnotationTreeSize, 9 FomulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 3498 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...