/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/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:38:53,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:38:53,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:38:53,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:38:53,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:38:53,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:38:53,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:38:53,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:38:53,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:38:54,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:38:54,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:38:54,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:38:54,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:38:54,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:38:54,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:38:54,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:38:54,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:38:54,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:38:54,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:38:54,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:38:54,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:38:54,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:38:54,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:38:54,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:38:54,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:38:54,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:38:54,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:38:54,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:38:54,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:38:54,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:38:54,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:38:54,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:38:54,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:38:54,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:38:54,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:38:54,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:38:54,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:38:54,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:38:54,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:38:54,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:38:54,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:38:54,072 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 13:38:54,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:38:54,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:38:54,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:38:54,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:38:54,121 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:38:54,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:38:54,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:38:54,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:38:54,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:38:54,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:38:54,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:38:54,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:38:54,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:38:54,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:38:54,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:38:54,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:38:54,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:38:54,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:38:54,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:38:54,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:38:54,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:38:54,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:38:54,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:38:54,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:38:54,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:38:54,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:38:54,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:38:54,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:38:54,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:38:54,128 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 13:38:54,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:38:54,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:38:54,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:38:54,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:38:54,620 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:38:54,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2020-09-25 13:38:54,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97097d40d/719ba3a3e6084e378f1d246b038251de/FLAG088bfeb8b [2020-09-25 13:38:55,216 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:38:55,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/array-1.c [2020-09-25 13:38:55,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97097d40d/719ba3a3e6084e378f1d246b038251de/FLAG088bfeb8b [2020-09-25 13:38:55,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97097d40d/719ba3a3e6084e378f1d246b038251de [2020-09-25 13:38:55,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:38:55,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:38:55,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:38:55,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:38:55,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:38:55,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:55,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1573d552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55, skipping insertion in model container [2020-09-25 13:38:55,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:55,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:38:55,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:38:55,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:38:55,935 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:38:55,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:38:55,982 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:38:55,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55 WrapperNode [2020-09-25 13:38:55,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:38:55,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:38:55,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:38:55,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:38:56,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (1/1) ... [2020-09-25 13:38:56,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:38:56,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:38:56,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:38:56,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:38:56,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (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 13:38:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:38:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:38:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:38:56,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:38:56,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:38:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:38:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:38:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:38:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:38:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:38:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:38:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:38:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:38:56,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:38:56,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:38:56,492 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:38:56,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:38:56 BoogieIcfgContainer [2020-09-25 13:38:56,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:38:56,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:38:56,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:38:56,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:38:56,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:38:55" (1/3) ... [2020-09-25 13:38:56,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad2e703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:38:56, skipping insertion in model container [2020-09-25 13:38:56,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:55" (2/3) ... [2020-09-25 13:38:56,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad2e703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:38:56, skipping insertion in model container [2020-09-25 13:38:56,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:38:56" (3/3) ... [2020-09-25 13:38:56,510 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2020-09-25 13:38:56,522 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:38:56,533 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:38:56,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:38:56,583 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:38:56,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:38:56,584 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:38:56,584 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:38:56,584 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:38:56,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:38:56,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:38:56,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:38:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 13:38:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 13:38:56,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:56,616 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] [2020-09-25 13:38:56,616 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:56,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:56,623 INFO L82 PathProgramCache]: Analyzing trace with hash 683487989, now seen corresponding path program 1 times [2020-09-25 13:38:56,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:56,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365017400] [2020-09-25 13:38:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:56,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:57,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:57,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:38:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:57,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-09-25 13:38:57,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:57,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:38:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:38:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:38:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:38:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:57,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:57,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:57,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:57,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:38:57,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:57,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:57,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:38:57,389 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 13:38:57,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365017400] [2020-09-25 13:38:57,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:38:57,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:38:57,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424405333] [2020-09-25 13:38:57,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:38:57,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:57,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:38:57,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:38:57,427 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2020-09-25 13:38:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:57,658 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-09-25 13:38:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:38:57,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-25 13:38:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:57,671 INFO L225 Difference]: With dead ends: 75 [2020-09-25 13:38:57,672 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 13:38:57,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:38:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 13:38:57,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2020-09-25 13:38:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 13:38:57,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-09-25 13:38:57,726 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22 [2020-09-25 13:38:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:57,726 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-09-25 13:38:57,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:38:57,727 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-09-25 13:38:57,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 13:38:57,728 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:57,729 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, 1, 1, 1, 1, 1] [2020-09-25 13:38:57,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:38:57,729 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:57,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:57,730 INFO L82 PathProgramCache]: Analyzing trace with hash 403649603, now seen corresponding path program 1 times [2020-09-25 13:38:57,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:57,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047205448] [2020-09-25 13:38:57,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:57,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:58,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:58,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:58,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 13:38:58,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-25 13:38:58,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:58,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:38:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 13:38:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:38:58,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:38:58,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:59,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:59,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:59,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:59,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:38:59,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:59,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:59,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:38:59,026 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 13:38:59,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047205448] [2020-09-25 13:38:59,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:59,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:38:59,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959166191] [2020-09-25 13:38:59,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:38:59,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:59,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:38:59,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:38:59,033 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 9 states. [2020-09-25 13:38:59,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:59,354 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-09-25 13:38:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:38:59,354 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-09-25 13:38:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:59,356 INFO L225 Difference]: With dead ends: 61 [2020-09-25 13:38:59,357 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 13:38:59,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:38:59,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 13:38:59,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2020-09-25 13:38:59,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 13:38:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-09-25 13:38:59,368 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 32 [2020-09-25 13:38:59,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:59,368 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-09-25 13:38:59,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:38:59,369 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-09-25 13:38:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 13:38:59,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:59,371 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:38:59,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:38:59,371 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:59,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:59,372 INFO L82 PathProgramCache]: Analyzing trace with hash -913737726, now seen corresponding path program 1 times [2020-09-25 13:38:59,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:59,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698167723] [2020-09-25 13:38:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:59,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:00,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:39:00,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:39:00,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-09-25 13:39:00,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:00,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:39:00,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 13:39:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:39:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:00,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:00,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:00,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:00,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:39:00,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:00,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:39:00,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:00,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:00,328 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 13:39:00,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698167723] [2020-09-25 13:39:00,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:39:00,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:39:00,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672456007] [2020-09-25 13:39:00,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:39:00,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:00,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:39:00,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:39:00,331 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 9 states. [2020-09-25 13:39:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:00,697 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-09-25 13:39:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:39:00,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 13:39:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:00,698 INFO L225 Difference]: With dead ends: 63 [2020-09-25 13:39:00,699 INFO L226 Difference]: Without dead ends: 57 [2020-09-25 13:39:00,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:39:00,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-25 13:39:00,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-09-25 13:39:00,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 13:39:00,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-09-25 13:39:00,708 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 35 [2020-09-25 13:39:00,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:00,709 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-09-25 13:39:00,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:39:00,709 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-09-25 13:39:00,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 13:39:00,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:00,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-09-25 13:39:00,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:39:00,711 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:00,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:00,712 INFO L82 PathProgramCache]: Analyzing trace with hash -884839407, now seen corresponding path program 2 times [2020-09-25 13:39:00,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:00,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389202948] [2020-09-25 13:39:00,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:00,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:00,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:00,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:01,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:02,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:02,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:04,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 13:39:04,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:39:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3326 [2020-09-25 13:39:04,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:04,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:39:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:39:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 13:39:04,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:04,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:04,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:04,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:39:04,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:04,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:39:04,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:04,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:04,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:39:04,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389202948] [2020-09-25 13:39:04,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:39:04,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:39:04,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021276569] [2020-09-25 13:39:04,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:39:04,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:04,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:39:04,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:39:04,288 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 10 states. [2020-09-25 13:39:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:04,644 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2020-09-25 13:39:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:39:04,647 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-09-25 13:39:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:04,649 INFO L225 Difference]: With dead ends: 67 [2020-09-25 13:39:04,649 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 13:39:04,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:39:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 13:39:04,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2020-09-25 13:39:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:39:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-09-25 13:39:04,660 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 42 [2020-09-25 13:39:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:04,660 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-09-25 13:39:04,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:39:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-09-25 13:39:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 13:39:04,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:39:04,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2020-09-25 13:39:04,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:39:04,662 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:39:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:39:04,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2127857012, now seen corresponding path program 1 times [2020-09-25 13:39:04,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:39:04,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237545011] [2020-09-25 13:39:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:39:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:04,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:04,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:05,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:05,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:07,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:07,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:39:07,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:39:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2392 [2020-09-25 13:39:07,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:07,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:39:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:39:07,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 13:39:07,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:07,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:39:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:39:07,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:39:07,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:39:07,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:39:07,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:39:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:39:07,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:39:07,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:39:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:39:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:39:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:39:07,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:39:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:39:07,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237545011] [2020-09-25 13:39:07,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:39:07,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:39:07,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986599055] [2020-09-25 13:39:07,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:39:07,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:39:07,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:39:07,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:39:07,269 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 10 states. [2020-09-25 13:39:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:39:07,668 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2020-09-25 13:39:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:39:07,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2020-09-25 13:39:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:39:07,669 INFO L225 Difference]: With dead ends: 56 [2020-09-25 13:39:07,669 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:39:07,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:39:07,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:39:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:39:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:39:07,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:39:07,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-09-25 13:39:07,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:39:07,672 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:39:07,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:39:07,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:39:07,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:39:07,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:39:07,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:39:07,909 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 13:39:07,909 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 13:39:07,909 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:39:07,910 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 13:39:07,910 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:39:07,910 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:39:07,910 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:39:07,910 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:39:07,910 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 13:39:07,911 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 13:39:07,912 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2020-09-25 13:39:07,912 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 13:39:07,913 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-25 13:39:07,913 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed. [2020-09-25 13:39:07,913 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 13:39:07,913 INFO L268 CegarLoopResult]: For program point L19-5(line 19) no Hoare annotation was computed. [2020-09-25 13:39:07,913 INFO L264 CegarLoopResult]: At program point L19-6(lines 19 24) the Hoare annotation is: (let ((.cse1 (<= 1 main_~SIZE~0)) (.cse0 (<= main_~SIZE~0 1)) (.cse2 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|))) (or (and (<= (+ main_~j~0 1) main_~SIZE~0) .cse0 (< 0 (+ (div main_~j~0 4294967296) 1))) (and .cse1 (= main_~menor~0 .cse2) .cse0) (and .cse1 .cse0 (<= (+ main_~menor~0 1) .cse2)))) [2020-09-25 13:39:07,914 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 13:39:07,914 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2020-09-25 13:39:07,914 INFO L268 CegarLoopResult]: For program point L19-7(lines 19 24) no Hoare annotation was computed. [2020-09-25 13:39:07,914 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-25 13:39:07,914 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 13:39:07,914 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 13:39:07,916 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (<= 1 main_~SIZE~0)) (.cse2 (<= main_~SIZE~0 1)) (.cse1 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|))) (or (and .cse0 (= main_~menor~0 .cse1) .cse2 (= main_~menor~0 |main_#t~mem5|)) (and .cse0 (<= main_~menor~0 |main_#t~mem5|) .cse2 (<= (+ main_~menor~0 1) .cse1)))) [2020-09-25 13:39:07,916 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-25 13:39:07,916 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 13:39:07,916 INFO L268 CegarLoopResult]: For program point L22-1(lines 22 23) no Hoare annotation was computed. [2020-09-25 13:39:07,916 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 13:39:07,917 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-09-25 13:39:07,917 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 13:39:07,919 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 13:39:07,919 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 13:39:07,919 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 13:39:07,919 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 13:39:07,920 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 13:39:07,920 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 13:39:07,920 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 13:39:07,921 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 13:39:07,921 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 13:39:07,921 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 13:39:07,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:07,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:07,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:07,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:07,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:39:07 BoogieIcfgContainer [2020-09-25 13:39:07,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:39:07,974 INFO L168 Benchmark]: Toolchain (without parser) took 12391.60 ms. Allocated memory was 139.5 MB in the beginning and 315.6 MB in the end (delta: 176.2 MB). Free memory was 102.9 MB in the beginning and 141.2 MB in the end (delta: -38.3 MB). Peak memory consumption was 137.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:07,977 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:39:07,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.21 ms. Allocated memory is still 139.5 MB. Free memory was 102.3 MB in the beginning and 92.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:07,979 INFO L168 Benchmark]: Boogie Preprocessor took 125.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 180.8 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:07,981 INFO L168 Benchmark]: RCFGBuilder took 388.51 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 164.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:07,983 INFO L168 Benchmark]: TraceAbstraction took 11466.06 ms. Allocated memory was 202.9 MB in the beginning and 315.6 MB in the end (delta: 112.7 MB). Free memory was 164.2 MB in the beginning and 141.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 135.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:39:07,990 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 395.21 ms. Allocated memory is still 139.5 MB. Free memory was 102.3 MB in the beginning and 92.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 180.8 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 388.51 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 164.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11466.06 ms. Allocated memory was 202.9 MB in the beginning and 315.6 MB in the end (delta: 112.7 MB). Free memory was 164.2 MB in the beginning and 141.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 135.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: 19]: Loop Invariant [2020-09-25 13:39:08,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:08,010 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:08,010 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 13:39:08,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((j + 1 <= SIZE && SIZE <= 1) && 0 < j / 4294967296 + 1) || ((1 <= SIZE && menor == unknown-#memory_int-unknown[array][array]) && SIZE <= 1)) || ((1 <= SIZE && SIZE <= 1) && menor + 1 <= unknown-#memory_int-unknown[array][array]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 156 SDtfs, 153 SDslu, 575 SDs, 0 SdLazy, 641 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=3, 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, 37 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 18 NumberOfFragments, 100 HoareAnnotationTreeSize, 11 FomulaSimplifications, 264 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 119 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 41210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 2/25 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...