/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/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:05:10,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:05:10,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:05:10,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:05:10,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:05:10,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:05:10,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:05:10,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:05:10,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:05:10,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:05:10,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:05:10,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:05:10,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:05:10,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:05:10,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:05:10,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:05:10,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:05:10,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:05:10,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:05:10,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:05:10,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:05:10,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:05:10,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:05:10,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:05:10,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:05:10,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:05:10,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:05:10,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:05:10,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:05:10,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:05:10,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:05:10,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:05:10,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:05:10,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:05:10,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:05:10,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:05:10,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:05:10,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:05:10,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:05:10,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:05:10,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:05:10,579 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 15:05:10,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:05:10,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:05:10,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:05:10,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:05:10,611 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:05:10,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:05:10,612 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:05:10,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:05:10,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:05:10,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:05:10,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:05:10,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:05:10,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:05:10,614 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:05:10,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:05:10,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:05:10,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:05:10,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:05:10,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:05:10,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:05:10,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:05:10,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:05:10,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:05:10,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:05:10,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:05:10,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:05:10,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:05:10,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:05:10,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:05:10,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:05:11,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:05:11,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:05:11,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:05:11,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:05:11,071 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:05:11,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2020-10-28 15:05:11,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2151adde6/c46d2150d46a40928e75d40ce1490a43/FLAGad6a11a35 [2020-10-28 15:05:11,931 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:05:11,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/array-1.c [2020-10-28 15:05:11,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2151adde6/c46d2150d46a40928e75d40ce1490a43/FLAGad6a11a35 [2020-10-28 15:05:12,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2151adde6/c46d2150d46a40928e75d40ce1490a43 [2020-10-28 15:05:12,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:05:12,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:05:12,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:05:12,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:05:12,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:05:12,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193924e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12, skipping insertion in model container [2020-10-28 15:05:12,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:05:12,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:05:12,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:05:12,481 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:05:12,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:05:12,520 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:05:12,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12 WrapperNode [2020-10-28 15:05:12,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:05:12,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:05:12,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:05:12,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:05:12,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (1/1) ... [2020-10-28 15:05:12,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:05:12,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:05:12,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:05:12,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:05:12,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (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 15:05:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:05:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:05:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:05:12,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 15:05:12,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:05:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:05:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:05:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:05:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:05:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 15:05:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 15:05:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:05:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:05:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:05:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:05:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:05:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:05:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:05:13,047 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:05:13,047 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 15:05:13,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:05:13 BoogieIcfgContainer [2020-10-28 15:05:13,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:05:13,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:05:13,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:05:13,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:05:13,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:05:12" (1/3) ... [2020-10-28 15:05:13,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db864ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:05:13, skipping insertion in model container [2020-10-28 15:05:13,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:05:12" (2/3) ... [2020-10-28 15:05:13,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db864ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:05:13, skipping insertion in model container [2020-10-28 15:05:13,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:05:13" (3/3) ... [2020-10-28 15:05:13,062 INFO L111 eAbstractionObserver]: Analyzing ICFG array-1.c [2020-10-28 15:05:13,078 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:05:13,109 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:05:13,141 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:05:13,189 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:05:13,190 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:05:13,190 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:05:13,190 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:05:13,190 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:05:13,190 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:05:13,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:05:13,191 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:05:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-28 15:05:13,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-28 15:05:13,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:05:13,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:05:13,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:05:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:05:13,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1934270437, now seen corresponding path program 1 times [2020-10-28 15:05:13,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:05:13,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265102235] [2020-10-28 15:05:13,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:05:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:13,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:13,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 15:05:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 15:05:13,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:13,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:05:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:05:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:05:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 15:05:13,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:05:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:13,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:13,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:13,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:05:13,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:13,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 15:05:13,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:13,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:05:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:05:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:05:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:13,757 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 15:05:13,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265102235] [2020-10-28 15:05:13,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:05:13,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 15:05:13,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407046727] [2020-10-28 15:05:13,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 15:05:13,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:05:13,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 15:05:13,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 15:05:13,792 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-10-28 15:05:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:05:13,899 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2020-10-28 15:05:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 15:05:13,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-28 15:05:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:05:13,909 INFO L225 Difference]: With dead ends: 40 [2020-10-28 15:05:13,909 INFO L226 Difference]: Without dead ends: 16 [2020-10-28 15:05:13,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 15:05:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-28 15:05:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-28 15:05:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-28 15:05:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-10-28 15:05:13,954 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2020-10-28 15:05:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:05:13,955 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-10-28 15:05:13,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 15:05:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-10-28 15:05:13,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-28 15:05:13,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:05:13,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:05:13,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:05:13,956 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:05:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:05:13,957 INFO L82 PathProgramCache]: Analyzing trace with hash 761664538, now seen corresponding path program 1 times [2020-10-28 15:05:13,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:05:13,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145981822] [2020-10-28 15:05:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:05:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:14,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:14,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:14,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 15:05:14,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-28 15:05:14,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:14,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:05:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:05:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:05:14,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:05:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:05:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:14,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:14,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:14,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:05:14,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:14,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 15:05:14,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:14,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:14,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:05:14,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:05:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:05:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:14,347 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 15:05:14,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145981822] [2020-10-28 15:05:14,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:05:14,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 15:05:14,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266173455] [2020-10-28 15:05:14,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 15:05:14,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:05:14,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 15:05:14,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:05:14,356 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2020-10-28 15:05:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:05:14,475 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-10-28 15:05:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 15:05:14,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-28 15:05:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:05:14,478 INFO L225 Difference]: With dead ends: 26 [2020-10-28 15:05:14,478 INFO L226 Difference]: Without dead ends: 19 [2020-10-28 15:05:14,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:05:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-28 15:05:14,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2020-10-28 15:05:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-28 15:05:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-28 15:05:14,501 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2020-10-28 15:05:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:05:14,501 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-28 15:05:14,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 15:05:14,502 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-28 15:05:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-28 15:05:14,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:05:14,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:05:14,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:05:14,504 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:05:14,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:05:14,506 INFO L82 PathProgramCache]: Analyzing trace with hash 726671833, now seen corresponding path program 1 times [2020-10-28 15:05:14,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:05:14,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976348600] [2020-10-28 15:05:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:05:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:14,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:15,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:15,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 15:05:15,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:15,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-28 15:05:15,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:15,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:05:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:05:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:05:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:15,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:05:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:15,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:15,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:15,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:05:15,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 15:05:15,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:15,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:05:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:05:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:05:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:05:15,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976348600] [2020-10-28 15:05:15,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:05:15,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 15:05:15,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946642010] [2020-10-28 15:05:15,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:05:15,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:05:15,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:05:15,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:05:15,327 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 9 states. [2020-10-28 15:05:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:05:15,669 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-28 15:05:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:05:15,670 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-28 15:05:15,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:05:15,671 INFO L225 Difference]: With dead ends: 26 [2020-10-28 15:05:15,672 INFO L226 Difference]: Without dead ends: 19 [2020-10-28 15:05:15,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:05:15,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-28 15:05:15,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-28 15:05:15,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-28 15:05:15,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-28 15:05:15,684 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16 [2020-10-28 15:05:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:05:15,685 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-28 15:05:15,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:05:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-28 15:05:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-28 15:05:15,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:05:15,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:05:15,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:05:15,688 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:05:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:05:15,689 INFO L82 PathProgramCache]: Analyzing trace with hash 46613463, now seen corresponding path program 1 times [2020-10-28 15:05:15,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:05:15,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849969055] [2020-10-28 15:05:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:05:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:16,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:16,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 15:05:16,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:16,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-28 15:05:16,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:16,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:05:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:05:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:05:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:05:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:16,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:16,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:16,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:05:16,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:16,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:05:16,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:16,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:05:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:05:16,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:05:16,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:16,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:05:16,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849969055] [2020-10-28 15:05:16,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:05:16,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 15:05:16,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547662174] [2020-10-28 15:05:16,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:05:16,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:05:16,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:05:16,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:05:16,257 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 8 states. [2020-10-28 15:05:16,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:05:16,467 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-28 15:05:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:05:16,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-28 15:05:16,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:05:16,469 INFO L225 Difference]: With dead ends: 30 [2020-10-28 15:05:16,469 INFO L226 Difference]: Without dead ends: 23 [2020-10-28 15:05:16,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:05:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-28 15:05:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-10-28 15:05:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-28 15:05:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-10-28 15:05:16,476 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2020-10-28 15:05:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:05:16,476 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-10-28 15:05:16,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:05:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-10-28 15:05:16,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 15:05:16,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:05:16,477 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:05:16,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:05:16,478 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:05:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:05:16,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1255991736, now seen corresponding path program 1 times [2020-10-28 15:05:16,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:05:16,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348843785] [2020-10-28 15:05:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:05:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:16,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:16,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:16,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 15:05:16,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:05:16,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-10-28 15:05:16,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:16,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:16,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:05:16,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:05:16,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:05:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:05:17,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:05:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:05:17,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:05:17,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:05:17,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:05:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:05:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:05:17,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:05:17,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:05:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:05:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:05:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:05:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:05:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:05:17,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348843785] [2020-10-28 15:05:17,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:05:17,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 15:05:17,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199521600] [2020-10-28 15:05:17,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:05:17,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:05:17,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:05:17,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:05:17,135 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 5 states. [2020-10-28 15:05:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:05:17,168 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-10-28 15:05:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 15:05:17,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-28 15:05:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:05:17,169 INFO L225 Difference]: With dead ends: 22 [2020-10-28 15:05:17,170 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 15:05:17,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:05:17,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 15:05:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 15:05:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 15:05:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 15:05:17,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-28 15:05:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:05:17,172 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 15:05:17,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:05:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 15:05:17,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 15:05:17,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 15:05:17,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 15:05:17,456 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-10-28 15:05:17,465 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 15:05:17,465 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 15:05:17,466 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 15:05:17,466 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 15:05:17,466 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:05:17,466 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#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~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 15:05:17,466 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:05:17,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:05:17,467 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 15:05:17,467 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 15:05:17,467 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:05:17,467 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 13 31) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-28 15:05:17,467 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (let ((.cse1 (<= main_~SIZE~0 1)) (.cse2 (= |main_~#array~0.offset| 0)) (.cse0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (.cse3 (< 0 (+ (div main_~SIZE~0 4294967296) 1)))) (or (and (= main_~menor~0 .cse0) .cse1 .cse2 (= main_~menor~0 |main_#t~mem12|) .cse3) (let ((.cse4 (+ main_~menor~0 1))) (and .cse1 .cse2 (<= .cse4 .cse0) (<= .cse4 |main_#t~mem12|) .cse3)))) [2020-10-28 15:05:17,468 INFO L274 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-10-28 15:05:17,468 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 13 31) no Hoare annotation was computed. [2020-10-28 15:05:17,468 INFO L274 CegarLoopResult]: For program point L24(lines 24 25) no Hoare annotation was computed. [2020-10-28 15:05:17,468 INFO L274 CegarLoopResult]: For program point L21-2(lines 21 26) no Hoare annotation was computed. [2020-10-28 15:05:17,468 INFO L270 CegarLoopResult]: At program point L21-3(lines 21 26) the Hoare annotation is: (let ((.cse0 (<= main_~SIZE~0 1)) (.cse1 (= |main_~#array~0.offset| 0))) (or (and (<= 1 main_~SIZE~0) (= main_~j~0 0) .cse0 .cse1) (and (<= main_~SIZE~0 main_~j~0) (let ((.cse2 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|))) (or (and .cse0 .cse1 (<= (+ main_~menor~0 1) .cse2)) (and (= main_~menor~0 .cse2) .cse0 .cse1))) (<= (div main_~j~0 4294967296) 0) (< 0 (+ (div main_~SIZE~0 4294967296) 1))))) [2020-10-28 15:05:17,468 INFO L274 CegarLoopResult]: For program point L21-4(lines 21 26) no Hoare annotation was computed. [2020-10-28 15:05:17,469 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 13 31) no Hoare annotation was computed. [2020-10-28 15:05:17,469 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-28 15:05:17,469 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-28 15:05:17,469 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-28 15:05:17,469 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-28 15:05:17,469 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-28 15:05:17,469 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-28 15:05:17,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 03:05:17 BoogieIcfgContainer [2020-10-28 15:05:17,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 15:05:17,494 INFO L168 Benchmark]: Toolchain (without parser) took 5228.41 ms. Allocated memory was 152.0 MB in the beginning and 190.8 MB in the end (delta: 38.8 MB). Free memory was 127.5 MB in the beginning and 88.9 MB in the end (delta: 38.5 MB). Peak memory consumption was 78.4 MB. Max. memory is 8.0 GB. [2020-10-28 15:05:17,495 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 15:05:17,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.91 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-28 15:05:17,497 INFO L168 Benchmark]: Boogie Preprocessor took 69.11 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 15:05:17,498 INFO L168 Benchmark]: RCFGBuilder took 456.41 ms. Allocated memory is still 152.0 MB. Free memory was 115.9 MB in the beginning and 102.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-28 15:05:17,499 INFO L168 Benchmark]: TraceAbstraction took 4439.71 ms. Allocated memory was 152.0 MB in the beginning and 190.8 MB in the end (delta: 38.8 MB). Free memory was 102.0 MB in the beginning and 88.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 53.2 MB. Max. memory is 8.0 GB. [2020-10-28 15:05:17,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 125.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 249.91 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 69.11 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 456.41 ms. Allocated memory is still 152.0 MB. Free memory was 115.9 MB in the beginning and 102.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4439.71 ms. Allocated memory was 152.0 MB in the beginning and 190.8 MB in the end (delta: 38.8 MB). Free memory was 102.0 MB in the beginning and 88.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 53.2 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 21]: Loop Invariant [2020-10-28 15:05:17,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:05:17,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((1 <= SIZE && j == 0) && SIZE <= 1) && array == 0) || (((SIZE <= j && (((SIZE <= 1 && array == 0) && menor + 1 <= unknown-#memory_int-unknown[array][array]) || ((menor == unknown-#memory_int-unknown[array][array] && SIZE <= 1) && array == 0))) && j / 4294967296 <= 0) && 0 < SIZE / 4294967296 + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 33 SDslu, 102 SDs, 0 SdLazy, 205 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 21 PreInvPairs, 25 NumberOfFragments, 159 HoareAnnotationTreeSize, 21 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 6219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 4/7 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...