/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:04:05,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:04:05,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:04:05,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:04:05,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:04:05,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:04:05,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:04:05,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:04:05,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:04:05,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:04:05,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:04:05,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:04:05,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:04:05,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:04:05,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:04:05,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:04:05,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:04:05,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:04:05,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:04:05,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:04:05,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:04:05,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:04:05,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:04:05,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:04:05,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:04:05,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:04:05,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:04:05,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:04:05,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:04:05,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:04:05,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:04:05,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:04:05,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:04:05,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:04:05,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:04:05,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:04:05,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:04:05,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:04:05,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:04:05,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:04:05,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:04:05,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 16:04:05,366 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:04:05,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:04:05,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:04:05,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:04:05,369 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:04:05,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:04:05,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:04:05,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:04:05,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:04:05,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:04:05,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:04:05,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:04:05,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:04:05,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:04:05,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:04:05,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:04:05,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:04:05,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:04:05,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:04:05,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:04:05,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:04:05,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:04:05,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:04:05,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:04:05,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:04:05,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:04:05,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:04:05,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:04:05,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:04:05,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 16:04:05,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:04:05,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:04:05,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:04:05,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:04:05,692 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:04:05,693 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2020-10-12 16:04:05,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4606992d4/827618e7d3934b899466742dc852ad69/FLAG7af80ebdf [2020-10-12 16:04:06,245 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:04:06,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2020-10-12 16:04:06,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4606992d4/827618e7d3934b899466742dc852ad69/FLAG7af80ebdf [2020-10-12 16:04:06,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4606992d4/827618e7d3934b899466742dc852ad69 [2020-10-12 16:04:06,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:04:06,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:04:06,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:04:06,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:04:06,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:04:06,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:04:06" (1/1) ... [2020-10-12 16:04:06,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eab0e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:06, skipping insertion in model container [2020-10-12 16:04:06,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:04:06" (1/1) ... [2020-10-12 16:04:06,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:04:06,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:04:07,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:04:07,056 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:04:07,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:04:07,145 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:04:07,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07 WrapperNode [2020-10-12 16:04:07,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:04:07,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:04:07,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:04:07,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:04:07,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... [2020-10-12 16:04:07,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:04:07,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:04:07,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:04:07,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:04:07,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:04:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:04:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:04:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:04:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:04:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-10-12 16:04:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-12 16:04:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:04:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 16:04:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 16:04:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 16:04:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 16:04:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 16:04:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 16:04:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:04:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:04:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 16:04:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 16:04:10,080 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:04:10,080 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 16:04:10,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:04:10 BoogieIcfgContainer [2020-10-12 16:04:10,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:04:10,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:04:10,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:04:10,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:04:10,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:04:06" (1/3) ... [2020-10-12 16:04:10,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2113f859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:04:10, skipping insertion in model container [2020-10-12 16:04:10,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:04:07" (2/3) ... [2020-10-12 16:04:10,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2113f859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:04:10, skipping insertion in model container [2020-10-12 16:04:10,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:04:10" (3/3) ... [2020-10-12 16:04:10,093 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2020-10-12 16:04:10,103 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:04:10,110 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 16:04:10,124 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 16:04:10,142 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:04:10,143 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:04:10,143 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:04:10,143 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:04:10,143 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:04:10,143 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:04:10,144 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:04:10,144 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:04:10,161 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-12 16:04:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 16:04:10,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:04:10,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:04:10,169 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:04:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:04:10,178 INFO L82 PathProgramCache]: Analyzing trace with hash 316900320, now seen corresponding path program 1 times [2020-10-12 16:04:10,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:04:10,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437993397] [2020-10-12 16:04:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:04:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:10,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:10,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:10,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 16:04:10,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-12 16:04:10,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:04:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:04:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 16:04:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 16:04:11,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:04:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:11,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:11,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:11,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:04:11,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:11,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 16:04:11,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:04:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:04:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:04:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:04:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:04:11,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437993397] [2020-10-12 16:04:11,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:04:11,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:04:11,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851550301] [2020-10-12 16:04:11,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:04:11,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:04:11,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:04:11,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:04:11,148 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2020-10-12 16:04:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:04:13,371 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2020-10-12 16:04:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:04:13,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-12 16:04:13,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:04:13,384 INFO L225 Difference]: With dead ends: 46 [2020-10-12 16:04:13,384 INFO L226 Difference]: Without dead ends: 24 [2020-10-12 16:04:13,388 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 [2020-10-12 16:04:13,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-12 16:04:13,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2020-10-12 16:04:13,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-12 16:04:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-12 16:04:13,426 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-12 16:04:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:04:13,426 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-12 16:04:13,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:04:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-12 16:04:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 16:04:13,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:04:13,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:04:13,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:04:13,428 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:04:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:04:13,429 INFO L82 PathProgramCache]: Analyzing trace with hash 316483246, now seen corresponding path program 1 times [2020-10-12 16:04:13,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:04:13,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050024294] [2020-10-12 16:04:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:04:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:13,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:13,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:13,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 16:04:13,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 16:04:13,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:13,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:04:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 16:04:13,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 16:04:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:04:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:04:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:13,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:13,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:13,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:04:13,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:04:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:04:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:04:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:04:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:04:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:04:13,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050024294] [2020-10-12 16:04:13,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:04:13,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 16:04:13,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618559669] [2020-10-12 16:04:13,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:04:13,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:04:13,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:04:13,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:04:13,918 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2020-10-12 16:04:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:04:16,017 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-12 16:04:16,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:04:16,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-12 16:04:16,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:04:16,019 INFO L225 Difference]: With dead ends: 25 [2020-10-12 16:04:16,020 INFO L226 Difference]: Without dead ends: 23 [2020-10-12 16:04:16,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:04:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-12 16:04:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-10-12 16:04:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-12 16:04:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-12 16:04:16,028 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2020-10-12 16:04:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:04:16,029 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-12 16:04:16,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:04:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-12 16:04:16,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 16:04:16,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:04:16,030 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:04:16,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:04:16,031 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:04:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:04:16,031 INFO L82 PathProgramCache]: Analyzing trace with hash 625969832, now seen corresponding path program 1 times [2020-10-12 16:04:16,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:04:16,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86043193] [2020-10-12 16:04:16,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:04:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:16,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:16,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 16:04:16,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:16,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-12 16:04:16,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:04:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:04:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:04:16,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:04:16,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:04:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:16,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:04:16,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:04:16,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:04:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:04:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:04:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:04:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:04:16,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86043193] [2020-10-12 16:04:16,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:04:16,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 16:04:16,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968141579] [2020-10-12 16:04:16,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:04:16,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:04:16,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:04:16,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:04:16,608 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2020-10-12 16:04:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:04:20,806 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-10-12 16:04:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:04:20,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-12 16:04:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:04:20,808 INFO L225 Difference]: With dead ends: 40 [2020-10-12 16:04:20,808 INFO L226 Difference]: Without dead ends: 30 [2020-10-12 16:04:20,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:04:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-12 16:04:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2020-10-12 16:04:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-12 16:04:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-12 16:04:20,820 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-10-12 16:04:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:04:20,821 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-12 16:04:20,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:04:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-12 16:04:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 16:04:20,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:04:20,823 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:04:20,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:04:20,823 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:04:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:04:20,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1878874992, now seen corresponding path program 2 times [2020-10-12 16:04:20,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:04:20,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616142709] [2020-10-12 16:04:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:04:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:20,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:21,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:21,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:21,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 16:04:21,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:04:21,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1126 [2020-10-12 16:04:21,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 16:04:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:04:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:04:21,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:04:22,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:04:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:04:22,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:04:22,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:04:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:04:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:04:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 16:04:22,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:04:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:04:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:04:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:04:22,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 16:04:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 16:04:22,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616142709] [2020-10-12 16:04:22,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:04:22,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 16:04:22,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592444292] [2020-10-12 16:04:22,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 16:04:22,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:04:22,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 16:04:22,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-12 16:04:22,313 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-10-12 16:04:28,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:04:28,815 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-10-12 16:04:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 16:04:28,816 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-12 16:04:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:04:28,816 INFO L225 Difference]: With dead ends: 32 [2020-10-12 16:04:28,817 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 16:04:28,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-12 16:04:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 16:04:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 16:04:28,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 16:04:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 16:04:28,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-12 16:04:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:04:28,819 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 16:04:28,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 16:04:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 16:04:28,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 16:04:28,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:04:28,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 16:04:29,020 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-12 16:04:29,111 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:04:29,111 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-12 16:04:29,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:04:29,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:04:29,112 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2020-10-12 16:04:29,112 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 16:04:29,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:04:29,113 INFO L268 CegarLoopResult]: For program point L159(lines 159 222) no Hoare annotation was computed. [2020-10-12 16:04:29,113 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 131 223) no Hoare annotation was computed. [2020-10-12 16:04:29,113 INFO L268 CegarLoopResult]: For program point L180(lines 180 215) no Hoare annotation was computed. [2020-10-12 16:04:29,113 INFO L268 CegarLoopResult]: For program point L178(lines 178 220) no Hoare annotation was computed. [2020-10-12 16:04:29,113 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 131 223) no Hoare annotation was computed. [2020-10-12 16:04:29,113 INFO L268 CegarLoopResult]: For program point L197(lines 197 207) no Hoare annotation was computed. [2020-10-12 16:04:29,114 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-10-12 16:04:29,114 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-12 16:04:29,114 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 131 223) the Hoare annotation is: (or (and (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= |old(~Id_MCDC_93~0)| 0))) [2020-10-12 16:04:29,114 INFO L268 CegarLoopResult]: For program point L189(lines 189 208) no Hoare annotation was computed. [2020-10-12 16:04:29,116 INFO L264 CegarLoopResult]: At program point L214(lines 180 215) the Hoare annotation is: (let ((.cse4 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4))) (let ((.cse1 (not (= main_~Id_MCDC_89____CPAchecker_TMP_1~0 0))) (.cse2 (or (and (<= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 ~Id_MCDC_93~0)) (< (+ .cse0 40) ~Id_MCDC_93~0))) (.cse3 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= (+ (* 4294967296 (div (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967254) 4294967296)) 1) main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 (+ .cse0 41)) .cse1 .cse2 .cse3) (not (= |old(~Id_MCDC_93~0)| 0)) (and (<= ~Id_MCDC_93~0 1) .cse1 (< 0 (+ .cse4 1)) .cse2 .cse3))))) [2020-10-12 16:04:29,117 INFO L264 CegarLoopResult]: At program point L202(lines 165 221) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (not (= |old(~Id_MCDC_93~0)| 0)) (and (= ~Id_MCDC_93~0 0) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse0) (and (<= (+ (* 4294967296 (div (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967254) 4294967296)) 1) main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 (+ (* 4294967296 (div ~Id_MCDC_93~0 4294967296)) 41)) (not (= main_~__VERIFIER_assert__Id_MCDC_92~0 0)) .cse0))) [2020-10-12 16:04:29,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,166 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,166 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:04:29 BoogieIcfgContainer [2020-10-12 16:04:29,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 16:04:29,173 INFO L168 Benchmark]: Toolchain (without parser) took 22519.72 ms. Allocated memory was 145.8 MB in the beginning and 280.0 MB in the end (delta: 134.2 MB). Free memory was 100.9 MB in the beginning and 125.8 MB in the end (delta: -24.9 MB). Peak memory consumption was 109.3 MB. Max. memory is 7.1 GB. [2020-10-12 16:04:29,174 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-12 16:04:29,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.59 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.6 MB in the beginning and 174.5 MB in the end (delta: -73.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-10-12 16:04:29,178 INFO L168 Benchmark]: Boogie Preprocessor took 99.06 ms. Allocated memory is still 202.4 MB. Free memory was 174.5 MB in the beginning and 170.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-10-12 16:04:29,184 INFO L168 Benchmark]: RCFGBuilder took 2838.08 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 97.8 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-10-12 16:04:29,187 INFO L168 Benchmark]: TraceAbstraction took 19084.59 ms. Allocated memory was 202.4 MB in the beginning and 280.0 MB in the end (delta: 77.6 MB). Free memory was 97.1 MB in the beginning and 125.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2020-10-12 16:04:29,194 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 145.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 492.59 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.6 MB in the beginning and 174.5 MB in the end (delta: -73.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.06 ms. Allocated memory is still 202.4 MB. Free memory was 174.5 MB in the beginning and 170.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2838.08 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 97.8 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19084.59 ms. Allocated memory was 202.4 MB in the beginning and 280.0 MB in the end (delta: 77.6 MB). Free memory was 97.1 MB in the beginning and 125.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 48.9 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 - 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: 191]: 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: 180]: Loop Invariant [2020-10-12 16:04:29,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,217 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,217 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((4294967296 * ((Id_MCDC_89__Id_MCDC_96 + 4294967254) / 4294967296) + 1 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 4294967296 * (Id_MCDC_93 / 4294967296) + 41) && !(Id_MCDC_89____CPAchecker_TMP_1 == 0)) && ((Id_MCDC_93 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= Id_MCDC_93) || 4294967296 * (Id_MCDC_93 / 4294967296) + 40 < Id_MCDC_93)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || !(\old(Id_MCDC_93) == 0)) || ((((Id_MCDC_93 <= 1 && !(Id_MCDC_89____CPAchecker_TMP_1 == 0)) && 0 < Id_MCDC_93 / 4294967296 + 1) && ((Id_MCDC_93 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 <= Id_MCDC_93) || 4294967296 * (Id_MCDC_93 / 4294967296) + 40 < Id_MCDC_93)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - InvariantResult [Line: 165]: Loop Invariant [2020-10-12 16:04:29,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-12 16:04:29,219 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (!(\old(Id_MCDC_93) == 0) || ((Id_MCDC_93 == 0 && Id_MCDC_89__Id_MCDC_96 == 0) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || (((4294967296 * ((Id_MCDC_89__Id_MCDC_96 + 4294967254) / 4294967296) + 1 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 4294967296 * (Id_MCDC_93 / 4294967296) + 41) && !(__VERIFIER_assert__Id_MCDC_92 == 0)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 69 SDslu, 90 SDs, 0 SdLazy, 165 SolverSat, 26 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 11 NumberOfFragments, 208 HoareAnnotationTreeSize, 6 FomulaSimplifications, 146 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 201 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 11880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/21 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...