/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 language data_model -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:59:02,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:59:02,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:59:02,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:59:02,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:59:02,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:59:02,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:59:02,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:59:02,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:59:02,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:59:02,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:59:02,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:59:02,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:59:02,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:59:02,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:59:02,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:59:02,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:59:02,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:59:02,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:59:02,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:59:02,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:59:02,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:59:02,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:59:02,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:59:02,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:59:02,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:59:02,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:59:02,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:59:02,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:59:02,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:59:02,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:59:02,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:59:02,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:59:02,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:59:02,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:59:02,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:59:02,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:59:02,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:59:02,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:59:02,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:59:02,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:59:02,341 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 [2020-10-28 14:59:02,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:59:02,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:59:02,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:59:02,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:59:02,389 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:59:02,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:59:02,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:59:02,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:59:02,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:59:02,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:59:02,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:59:02,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:59:02,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:59:02,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:59:02,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:59:02,391 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:59:02,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:59:02,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:59:02,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:59:02,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:59:02,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:59:02,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:59:02,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:59:02,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:59:02,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:59:02,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:59:02,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:59:02,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:59:02,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:59:02,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:59:02,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:59:02,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:59:02,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:59:02,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:59:02,878 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:59:02,879 INFO L432 ainManager$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 [2020-10-28 14:59:02,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efd4e0e08/88e6942a1fbc4e61bdb382bac8c5c7fe/FLAGa7506d54f [2020-10-28 14:59:03,592 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:59:03,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2020-10-28 14:59:03,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efd4e0e08/88e6942a1fbc4e61bdb382bac8c5c7fe/FLAGa7506d54f [2020-10-28 14:59:03,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/efd4e0e08/88e6942a1fbc4e61bdb382bac8c5c7fe [2020-10-28 14:59:03,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:59:03,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:59:03,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:59:03,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:59:03,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:59:03,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:59:03" (1/1) ... [2020-10-28 14:59:03,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b8d008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:03, skipping insertion in model container [2020-10-28 14:59:03,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:59:03" (1/1) ... [2020-10-28 14:59:03,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:59:04,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:59:04,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:59:04,337 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:59:04,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:59:04,491 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:59:04,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04 WrapperNode [2020-10-28 14:59:04,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:59:04,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:59:04,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:59:04,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:59:04,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (1/1) ... [2020-10-28 14:59:04,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:59:04,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:59:04,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:59:04,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:59:04,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (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 [2020-10-28 14:59:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:59:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:59:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:59:04,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:59:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:59:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:59:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:59:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 14:59:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:59:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:59:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:59:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:59:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:59:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 14:59:07,551 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:59:07,551 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 14:59:07,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:59:07 BoogieIcfgContainer [2020-10-28 14:59:07,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:59:07,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:59:07,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:59:07,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:59:07,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:59:03" (1/3) ... [2020-10-28 14:59:07,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e80e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:59:07, skipping insertion in model container [2020-10-28 14:59:07,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:59:04" (2/3) ... [2020-10-28 14:59:07,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e80e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:59:07, skipping insertion in model container [2020-10-28 14:59:07,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:59:07" (3/3) ... [2020-10-28 14:59:07,562 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2020-10-28 14:59:07,574 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:59:07,579 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:59:07,593 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:59:07,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:59:07,619 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:59:07,619 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:59:07,619 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:59:07,620 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:59:07,620 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:59:07,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:59:07,620 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:59:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-28 14:59:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-28 14:59:07,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:59:07,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:59:07,642 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:59:07,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:59:07,648 INFO L82 PathProgramCache]: Analyzing trace with hash -606838838, now seen corresponding path program 1 times [2020-10-28 14:59:07,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:59:07,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500021997] [2020-10-28 14:59:07,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:59:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:08,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:08,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:08,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 14:59:08,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-10-28 14:59:08,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:08,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:59:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 14:59:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 14:59:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 14:59:08,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:59:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:08,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:08,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:08,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:59:08,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 14:59:08,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:08,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:59:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:59:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:59:08,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:59:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:59:08,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500021997] [2020-10-28 14:59:08,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:59:08,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 14:59:08,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817097922] [2020-10-28 14:59:08,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 14:59:08,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:59:08,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 14:59:08,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:59:08,791 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-10-28 14:59:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:59:11,091 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-10-28 14:59:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 14:59:11,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-28 14:59:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:59:11,100 INFO L225 Difference]: With dead ends: 52 [2020-10-28 14:59:11,101 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 14:59:11,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 14:59:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 14:59:11,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2020-10-28 14:59:11,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-28 14:59:11,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-28 14:59:11,146 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-10-28 14:59:11,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:59:11,146 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-28 14:59:11,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 14:59:11,146 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-28 14:59:11,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-28 14:59:11,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:59:11,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:59:11,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:59:11,148 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:59:11,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:59:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash -619768132, now seen corresponding path program 1 times [2020-10-28 14:59:11,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:59:11,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155319214] [2020-10-28 14:59:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:59:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:11,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:11,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:11,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 14:59:11,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:11,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-28 14:59:11,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:11,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:11,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 14:59:11,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 14:59:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 14:59:11,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:59:11,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:59:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:11,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:11,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:11,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:59:11,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:11,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 14:59:11,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:11,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:59:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:59:11,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:59:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:59:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:59:11,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155319214] [2020-10-28 14:59:11,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:59:11,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 14:59:11,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423441487] [2020-10-28 14:59:11,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 14:59:11,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:59:11,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 14:59:11,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:59:11,602 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2020-10-28 14:59:13,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:59:13,746 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-28 14:59:13,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 14:59:13,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-28 14:59:13,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:59:13,749 INFO L225 Difference]: With dead ends: 30 [2020-10-28 14:59:13,749 INFO L226 Difference]: Without dead ends: 27 [2020-10-28 14:59:13,750 INFO L677 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 [2020-10-28 14:59:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-28 14:59:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2020-10-28 14:59:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-28 14:59:13,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-28 14:59:13,762 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2020-10-28 14:59:13,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:59:13,762 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-28 14:59:13,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 14:59:13,763 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-28 14:59:13,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:59:13,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:59:13,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:59:13,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:59:13,765 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:59:13,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:59:13,766 INFO L82 PathProgramCache]: Analyzing trace with hash -2039726942, now seen corresponding path program 1 times [2020-10-28 14:59:13,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:59:13,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626513476] [2020-10-28 14:59:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:59:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:14,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:14,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 14:59:14,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:14,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-28 14:59:14,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:14,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 14:59:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 14:59:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 14:59:14,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:59:14,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:59:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:14,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:14,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:59:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 14:59:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:14,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:59:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:59:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:59:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:59:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:59:14,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626513476] [2020-10-28 14:59:14,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:59:14,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 14:59:14,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846069310] [2020-10-28 14:59:14,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 14:59:14,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:59:14,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 14:59:14,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 14:59:14,515 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-10-28 14:59:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:59:18,752 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-28 14:59:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 14:59:18,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-28 14:59:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:59:18,756 INFO L225 Difference]: With dead ends: 42 [2020-10-28 14:59:18,757 INFO L226 Difference]: Without dead ends: 31 [2020-10-28 14:59:18,757 INFO L677 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 [2020-10-28 14:59:18,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-28 14:59:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-10-28 14:59:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-28 14:59:18,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-28 14:59:18,767 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 20 [2020-10-28 14:59:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:59:18,769 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-28 14:59:18,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 14:59:18,769 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-28 14:59:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 14:59:18,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:59:18,770 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:59:18,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 14:59:18,771 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:59:18,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:59:18,771 INFO L82 PathProgramCache]: Analyzing trace with hash 552671098, now seen corresponding path program 2 times [2020-10-28 14:59:18,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:59:18,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203326266] [2020-10-28 14:59:18,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:59:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:18,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:19,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:20,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:20,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 14:59:20,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:59:20,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1257 [2020-10-28 14:59:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:20,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 14:59:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 14:59:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 14:59:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:59:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:59:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:59:20,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:59:20,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:59:20,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:59:20,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:59:20,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 14:59:20,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:59:20,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:59:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:59:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:59:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:59:20,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:59:20,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 14:59:20,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203326266] [2020-10-28 14:59:20,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 14:59:20,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 14:59:20,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779505133] [2020-10-28 14:59:20,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 14:59:20,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:59:20,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 14:59:20,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 14:59:20,290 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2020-10-28 14:59:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:59:26,733 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2020-10-28 14:59:26,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 14:59:26,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-28 14:59:26,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:59:26,737 INFO L225 Difference]: With dead ends: 33 [2020-10-28 14:59:26,738 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 14:59:26,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 14:59:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 14:59:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 14:59:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 14:59:26,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 14:59:26,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-10-28 14:59:26,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:59:26,740 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 14:59:26,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 14:59:26,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 14:59:26,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 14:59:26,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 14:59:26,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 14:59:27,108 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 14:59:27,109 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 14:59:27,109 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 14:59:27,109 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 14:59:27,109 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 14:59:27,109 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#valid)| |#valid|) (= |#t~string51.base| |old(#t~string51.base)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |#t~string51.offset| |old(#t~string51.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-28 14:59:27,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 14:59:27,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 14:59:27,110 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~Id_MCDC_93~0 0) (<= 0 ~Id_MCDC_93~0)) [2020-10-28 14:59:27,110 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 14:59:27,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 14:59:27,110 INFO L274 CegarLoopResult]: For program point L161(lines 161 224) no Hoare annotation was computed. [2020-10-28 14:59:27,110 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 133 225) no Hoare annotation was computed. [2020-10-28 14:59:27,110 INFO L274 CegarLoopResult]: For program point L182(lines 182 217) no Hoare annotation was computed. [2020-10-28 14:59:27,111 INFO L274 CegarLoopResult]: For program point L180(lines 180 222) no Hoare annotation was computed. [2020-10-28 14:59:27,111 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 133 225) no Hoare annotation was computed. [2020-10-28 14:59:27,111 INFO L274 CegarLoopResult]: For program point L199(lines 199 209) no Hoare annotation was computed. [2020-10-28 14:59:27,111 INFO L270 CegarLoopResult]: At program point L193(line 193) the Hoare annotation is: (or (not (<= |old(~Id_MCDC_93~0)| 0)) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1)))) [2020-10-28 14:59:27,111 INFO L274 CegarLoopResult]: For program point L193-1(line 193) no Hoare annotation was computed. [2020-10-28 14:59:27,111 INFO L274 CegarLoopResult]: For program point L191(lines 191 210) no Hoare annotation was computed. [2020-10-28 14:59:27,111 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 133 225) the Hoare annotation is: (or (not (<= |old(~Id_MCDC_93~0)| 0)) (and (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1)))) [2020-10-28 14:59:27,112 INFO L270 CegarLoopResult]: At program point L216(lines 182 217) the Hoare annotation is: (let ((.cse0 (<= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (.cse1 (<= 1 main_~Id_MCDC_89____CPAchecker_TMP_1~0)) (.cse2 (<= main_~Id_MCDC_89__Id_MCDC_96~0 ~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 (not (<= |old(~Id_MCDC_93~0)| 0)) (and .cse0 (<= 1 (+ (* 4294967296 (div (+ (* main_~Id_MCDC_89__Id_MCDC_96~0 (- 1)) 41) 4294967296)) main_~Id_MCDC_89__Id_MCDC_96~0)) .cse1 .cse2 .cse3) (and .cse0 (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse1 .cse2 .cse3) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1))))) [2020-10-28 14:59:27,112 INFO L270 CegarLoopResult]: At program point L204(lines 167 223) 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 (+ (* 4294967296 (div ~Id_MCDC_93~0 4294967296)) 41)) (<= 1 (+ (* 4294967296 (div (+ (* main_~Id_MCDC_89__Id_MCDC_96~0 (- 1)) 41) 4294967296)) main_~Id_MCDC_89__Id_MCDC_96~0)) .cse0) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1))) (and (<= ~Id_MCDC_93~0 0) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (<= 0 ~Id_MCDC_93~0) .cse0))) [2020-10-28 14:59:27,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:59:27 BoogieIcfgContainer [2020-10-28 14:59:27,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:59:27,139 INFO L168 Benchmark]: Toolchain (without parser) took 23201.18 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 127.3 MB in the beginning and 129.3 MB in the end (delta: -2.1 MB). Peak memory consumption was 66.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:59:27,139 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 101.5 MB in the beginning and 101.4 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:59:27,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.48 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 111.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:59:27,141 INFO L168 Benchmark]: Boogie Preprocessor took 82.79 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 107.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:59:27,142 INFO L168 Benchmark]: RCFGBuilder took 2972.32 ms. Allocated memory is still 151.0 MB. Free memory was 107.8 MB in the beginning and 112.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:59:27,143 INFO L168 Benchmark]: TraceAbstraction took 19581.13 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 111.5 MB in the beginning and 129.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:59:27,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 101.5 MB in the beginning and 101.4 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 546.48 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 111.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.79 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 107.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2972.32 ms. Allocated memory is still 151.0 MB. Free memory was 107.8 MB in the beginning and 112.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19581.13 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 111.5 MB in the beginning and 129.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 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: 4]: 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: 167]: Loop Invariant [2020-10-28 14:59:27,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((!(\old(Id_MCDC_93) <= 0) || ((Id_MCDC_93 <= 4294967296 * (Id_MCDC_93 / 4294967296) + 41 && 1 <= 4294967296 * ((Id_MCDC_89__Id_MCDC_96 * -1 + 41) / 4294967296) + Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(0 < \old(Id_MCDC_93) / 4294967296 + 1)) || (((Id_MCDC_93 <= 0 && Id_MCDC_89__Id_MCDC_96 == 0) && 0 <= Id_MCDC_93) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - InvariantResult [Line: 182]: Loop Invariant [2020-10-28 14:59:27,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 14:59:27,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((!(\old(Id_MCDC_93) <= 0) || ((((Id_MCDC_93 <= Id_MCDC_89__Id_MCDC_96 && 1 <= 4294967296 * ((Id_MCDC_89__Id_MCDC_96 * -1 + 41) / 4294967296) + Id_MCDC_89__Id_MCDC_96) && 1 <= Id_MCDC_89____CPAchecker_TMP_1) && Id_MCDC_89__Id_MCDC_96 <= Id_MCDC_93) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_96 == 0) && 1 <= Id_MCDC_89____CPAchecker_TMP_1) && Id_MCDC_89__Id_MCDC_96 <= Id_MCDC_93) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(0 < \old(Id_MCDC_93) / 4294967296 + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.1s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 69 SDslu, 98 SDs, 0 SdLazy, 155 SolverSat, 28 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 231 HoareAnnotationTreeSize, 11 FomulaSimplifications, 92 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 230 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 10562 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 11/21 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...