/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/verifythis/elimination_max_rec_onepoint.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:47:21,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:47:21,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:47:21,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:47:21,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:47:21,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:47:21,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:47:21,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:47:21,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:47:21,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:47:21,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:47:21,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:47:21,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:47:21,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:47:21,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:47:21,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:47:21,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:47:21,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:47:21,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:47:21,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:47:21,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:47:21,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:47:21,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:47:21,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:47:21,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:47:21,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:47:21,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:47:21,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:47:21,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:47:21,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:47:21,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:47:21,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:47:21,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:47:21,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:47:21,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:47:21,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:47:21,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:47:21,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:47:21,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:47:21,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:47:21,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:47:21,725 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 [2020-10-29 14:47:21,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:47:21,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:47:21,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:47:21,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:47:21,772 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:47:21,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:47:21,773 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:47:21,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:47:21,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:47:21,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:47:21,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:47:21,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:47:21,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:47:21,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:47:21,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:47:21,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:47:21,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:47:21,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:47:21,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:47:21,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:47:21,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:47:21,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:47:21,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:47:21,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:47:21,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:47:21,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:47:21,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:47:21,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:47:21,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:47:21,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:47:22,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:47:22,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:47:22,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:47:22,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:47:22,214 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:47:22,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2020-10-29 14:47:22,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2f9e11b0/b410026f2b2f48249ce5ec310a03185a/FLAGdb542eee7 [2020-10-29 14:47:22,921 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:47:22,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2020-10-29 14:47:22,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2f9e11b0/b410026f2b2f48249ce5ec310a03185a/FLAGdb542eee7 [2020-10-29 14:47:23,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2f9e11b0/b410026f2b2f48249ce5ec310a03185a [2020-10-29 14:47:23,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:47:23,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:47:23,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:47:23,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:47:23,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:47:23,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b87f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23, skipping insertion in model container [2020-10-29 14:47:23,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:47:23,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:47:23,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:47:23,506 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:47:23,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:47:23,549 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:47:23,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23 WrapperNode [2020-10-29 14:47:23,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:47:23,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:47:23,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:47:23,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:47:23,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (1/1) ... [2020-10-29 14:47:23,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:47:23,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:47:23,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:47:23,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:47:23,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (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 [2020-10-29 14:47:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:47:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:47:23,680 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:47:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 14:47:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 14:47:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 14:47:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:47:23,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 14:47:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 14:47:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 14:47:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:47:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:47:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:47:23,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:47:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 14:47:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 14:47:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 14:47:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 14:47:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:47:23,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:47:23,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:47:24,253 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:47:24,253 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 14:47:24,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:47:24 BoogieIcfgContainer [2020-10-29 14:47:24,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:47:24,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:47:24,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:47:24,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:47:24,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:47:23" (1/3) ... [2020-10-29 14:47:24,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ac5bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:47:24, skipping insertion in model container [2020-10-29 14:47:24,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:23" (2/3) ... [2020-10-29 14:47:24,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ac5bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:47:24, skipping insertion in model container [2020-10-29 14:47:24,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:47:24" (3/3) ... [2020-10-29 14:47:24,264 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c [2020-10-29 14:47:24,276 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:47:24,281 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:47:24,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:47:24,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:47:24,323 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:47:24,323 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:47:24,323 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:47:24,324 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:47:24,324 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:47:24,324 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:47:24,324 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:47:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-29 14:47:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 14:47:24,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:47:24,350 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:47:24,351 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:47:24,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:47:24,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2012302290, now seen corresponding path program 1 times [2020-10-29 14:47:24,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:47:24,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430057099] [2020-10-29 14:47:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:47:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:24,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:24,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:24,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:25,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 14:47:25,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:47:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-29 14:47:25,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:25,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:47:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 14:47:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:47:25,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 14:47:25,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:47:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:25,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:25,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:25,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:47:25,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:25,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:25,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:47:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:25,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:25,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:47:25,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:47:25,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:25,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:25,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:25,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:25,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:47:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:25,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:25,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:47:25,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:47:25,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:25,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 14:47:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:25,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:47:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:25,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:25,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:25,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:25,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:47:25,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:25,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:25,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-29 14:47:25,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430057099] [2020-10-29 14:47:25,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:47:25,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 14:47:25,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629290055] [2020-10-29 14:47:25,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:47:25,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:47:25,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:47:25,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:47:25,488 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 8 states. [2020-10-29 14:47:26,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:47:26,622 INFO L93 Difference]: Finished difference Result 110 states and 148 transitions. [2020-10-29 14:47:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 14:47:26,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-10-29 14:47:26,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:47:26,636 INFO L225 Difference]: With dead ends: 110 [2020-10-29 14:47:26,637 INFO L226 Difference]: Without dead ends: 63 [2020-10-29 14:47:26,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:47:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-29 14:47:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2020-10-29 14:47:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-29 14:47:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-10-29 14:47:26,699 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 31 [2020-10-29 14:47:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:47:26,699 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-10-29 14:47:26,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:47:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-10-29 14:47:26,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-29 14:47:26,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:47:26,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:47:26,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:47:26,703 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:47:26,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:47:26,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1062488801, now seen corresponding path program 1 times [2020-10-29 14:47:26,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:47:26,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11104283] [2020-10-29 14:47:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:47:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:26,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:28,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:28,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 14:47:28,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:47:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1353 [2020-10-29 14:47:28,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:28,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:47:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 14:47:28,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 14:47:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:28,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:47:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:28,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:28,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:28,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:28,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:28,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:47:28,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:28,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:28,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:47:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:28,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:28,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:28,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:28,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:47:28,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:28,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:47:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:28,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:28,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:28,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:47:28,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:28,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:28,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:47:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:28,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:28,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:28,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:28,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:28,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:47:28,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:28,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:47:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:28,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 14:47:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:28,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:28,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:28,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:47:28,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:28,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:47:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:28,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:28,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 14:47:28,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11104283] [2020-10-29 14:47:28,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:47:28,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 14:47:28,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489406662] [2020-10-29 14:47:28,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:47:28,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:47:28,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:47:28,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:47:28,389 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 10 states. [2020-10-29 14:47:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:47:29,079 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2020-10-29 14:47:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 14:47:29,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-29 14:47:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:47:29,081 INFO L225 Difference]: With dead ends: 65 [2020-10-29 14:47:29,082 INFO L226 Difference]: Without dead ends: 56 [2020-10-29 14:47:29,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-10-29 14:47:29,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-29 14:47:29,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-29 14:47:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-29 14:47:29,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2020-10-29 14:47:29,098 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 34 [2020-10-29 14:47:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:47:29,099 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2020-10-29 14:47:29,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:47:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2020-10-29 14:47:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 14:47:29,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:47:29,101 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:47:29,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:47:29,101 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:47:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:47:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash -417812990, now seen corresponding path program 1 times [2020-10-29 14:47:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:47:29,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100479997] [2020-10-29 14:47:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:47:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:29,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:29,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 14:47:30,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:47:30,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-29 14:47:30,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:47:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 14:47:30,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 14:47:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:30,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:47:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:30,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:30,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:47:30,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:30,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:30,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:47:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:30,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:30,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:47:30,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:30,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:30,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:30,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:30,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:47:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:30,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:30,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:47:30,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:47:30,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:47:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:30,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:30,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:30,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:47:30,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:30,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:47:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:30,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:30,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:47:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:47:30,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:47:30,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:30,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:30,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:30,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:47:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:30,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:30,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:30,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:30,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:47:30,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:30,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:30,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:47:30,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:30,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:30,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 14:47:30,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100479997] [2020-10-29 14:47:30,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 14:47:30,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 14:47:30,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810080911] [2020-10-29 14:47:30,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:47:30,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:47:30,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:47:30,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:47:30,345 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand 10 states. [2020-10-29 14:47:30,863 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-29 14:47:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:47:31,220 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2020-10-29 14:47:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 14:47:31,222 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-10-29 14:47:31,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:47:31,224 INFO L225 Difference]: With dead ends: 68 [2020-10-29 14:47:31,224 INFO L226 Difference]: Without dead ends: 65 [2020-10-29 14:47:31,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-29 14:47:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-29 14:47:31,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2020-10-29 14:47:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-29 14:47:31,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-10-29 14:47:31,245 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 46 [2020-10-29 14:47:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:47:31,246 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-10-29 14:47:31,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:47:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-10-29 14:47:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-29 14:47:31,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:47:31,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:47:31,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:47:31,255 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:47:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:47:31,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2141966764, now seen corresponding path program 1 times [2020-10-29 14:47:31,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:47:31,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881817478] [2020-10-29 14:47:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:47:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:31,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:35,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:35,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 14:47:35,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:47:35,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4689 [2020-10-29 14:47:35,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:35,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:47:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 14:47:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:47:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:47:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:36,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:47:36,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:47:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:36,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:47:36,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:36,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:36,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 14:47:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:36,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:47:36,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:47:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:47:36,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:47:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:47:36,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:47:36,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:47:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:47:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:36,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:47:36,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:47:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:47:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:36,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:47:36,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:47:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:36,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 14:47:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:36,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:36,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:47:36,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:47:36,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:47:36,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:47:36,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:47:36,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:47:36,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:47:36,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:47:36,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:47:36,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:47:36,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 14:47:36,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881817478] [2020-10-29 14:47:36,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:47:36,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 14:47:36,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370017084] [2020-10-29 14:47:36,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 14:47:36,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:47:36,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 14:47:36,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-29 14:47:36,231 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 12 states. [2020-10-29 14:47:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:47:36,890 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-29 14:47:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 14:47:36,891 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-10-29 14:47:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:47:36,892 INFO L225 Difference]: With dead ends: 45 [2020-10-29 14:47:36,892 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 14:47:36,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-29 14:47:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 14:47:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 14:47:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 14:47:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 14:47:36,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-10-29 14:47:36,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:47:36,894 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 14:47:36,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 14:47:36,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 14:47:36,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 14:47:36,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:47:36,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 14:47:37,267 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2020-10-29 14:47:37,504 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 33 [2020-10-29 14:47:37,653 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-10-29 14:47:37,856 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2020-10-29 14:47:37,882 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 5) no Hoare annotation was computed. [2020-10-29 14:47:37,883 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 5) the Hoare annotation is: true [2020-10-29 14:47:37,883 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 5) no Hoare annotation was computed. [2020-10-29 14:47:37,883 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-29 14:47:37,883 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 14:47:37,884 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |old(#valid)| |#valid|)) [2020-10-29 14:47:37,884 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 14:47:37,884 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 14:47:37,884 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 14:47:37,884 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 14:47:37,884 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 14:47:37,884 INFO L277 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2020-10-29 14:47:37,884 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-29 14:47:37,885 INFO L274 CegarLoopResult]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2020-10-29 14:47:37,885 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2020-10-29 14:47:37,885 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 40 54) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-29 14:47:37,885 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 40 54) no Hoare annotation was computed. [2020-10-29 14:47:37,885 INFO L270 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ax~1 0) (= main_~ai~1 0))) [2020-10-29 14:47:37,885 INFO L274 CegarLoopResult]: For program point L50-1(line 50) no Hoare annotation was computed. [2020-10-29 14:47:37,885 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2020-10-29 14:47:37,886 INFO L270 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-29 14:47:37,886 INFO L274 CegarLoopResult]: For program point L47-1(line 47) no Hoare annotation was computed. [2020-10-29 14:47:37,886 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-29 14:47:37,886 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-29 14:47:37,886 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 40 54) no Hoare annotation was computed. [2020-10-29 14:47:37,886 INFO L274 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed. [2020-10-29 14:47:37,886 INFO L270 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-29 14:47:37,886 INFO L274 CegarLoopResult]: For program point L42-1(line 42) no Hoare annotation was computed. [2020-10-29 14:47:37,886 INFO L277 CegarLoopResult]: At program point checkENTRY(lines 16 38) the Hoare annotation is: true [2020-10-29 14:47:37,887 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-29 14:47:37,887 INFO L274 CegarLoopResult]: For program point L26(lines 26 27) no Hoare annotation was computed. [2020-10-29 14:47:37,887 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 27) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 0 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (and (= (select |#memory_int| check_~a.base) .cse0) (let ((.cse1 (<= (+ check_~y 1) check_~n))) (or (and .cse1 (<= 1 check_~x)) (and (= |check_#in~x| 0) .cse1 (= check_~x 0))))))) [2020-10-29 14:47:37,887 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-29 14:47:37,887 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 0 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (and (= (select |#memory_int| check_~a.base) .cse0) (let ((.cse1 (<= (+ check_~y 1) check_~n))) (or (and (= |check_#in~x| 0) .cse1 (= check_~x 0)) (and .cse1 (<= 1 |check_#in~x|) (<= 1 check_~x))))))) [2020-10-29 14:47:37,888 INFO L270 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 0 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (and (= (select |#memory_int| check_~a.base) .cse0) (let ((.cse1 (<= (+ check_~y 1) check_~n))) (or (and (= |check_#in~x| 0) .cse1 (= check_~x 0)) (and .cse1 (<= 1 |check_#in~x|) (<= 1 check_~x))))))) [2020-10-29 14:47:37,888 INFO L274 CegarLoopResult]: For program point checkEXIT(lines 16 38) no Hoare annotation was computed. [2020-10-29 14:47:37,888 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-29 14:47:37,888 INFO L274 CegarLoopResult]: For program point checkFINAL(lines 16 38) no Hoare annotation was computed. [2020-10-29 14:47:37,888 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 0 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (and (= check_~ai~0 check_~ax~0) (= (select |#memory_int| check_~a.base) .cse0) (let ((.cse1 (<= (+ check_~y 1) check_~n))) (or (and .cse1 (<= 1 check_~x)) (and (= |check_#in~x| 0) (<= 0 check_~x) .cse1)))))) [2020-10-29 14:47:37,888 INFO L274 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-10-29 14:47:37,888 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2020-10-29 14:47:37,889 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-29 14:47:37,889 INFO L270 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-29 14:47:37,889 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2020-10-29 14:47:37,889 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-10-29 14:47:37,889 INFO L274 CegarLoopResult]: For program point L11-4(lines 10 12) no Hoare annotation was computed. [2020-10-29 14:47:37,889 INFO L270 CegarLoopResult]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-29 14:47:37,889 INFO L274 CegarLoopResult]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2020-10-29 14:47:37,889 INFO L274 CegarLoopResult]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2020-10-29 14:47:37,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 02:47:37 BoogieIcfgContainer [2020-10-29 14:47:37,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 14:47:37,897 INFO L168 Benchmark]: Toolchain (without parser) took 14613.99 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 125.9 MB in the beginning and 262.9 MB in the end (delta: -137.0 MB). Peak memory consumption was 181.3 MB. Max. memory is 8.0 GB. [2020-10-29 14:47:37,898 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 14:47:37,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 114.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 14:47:37,899 INFO L168 Benchmark]: Boogie Preprocessor took 42.41 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 14:47:37,900 INFO L168 Benchmark]: RCFGBuilder took 660.35 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 130.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. [2020-10-29 14:47:37,901 INFO L168 Benchmark]: TraceAbstraction took 13638.25 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 130.2 MB in the beginning and 262.9 MB in the end (delta: -132.7 MB). Peak memory consumption was 185.6 MB. Max. memory is 8.0 GB. [2020-10-29 14:47:37,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 261.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 114.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.41 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 660.35 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 130.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13638.25 ms. Allocated memory was 151.0 MB in the beginning and 314.6 MB in the end (delta: 163.6 MB). Free memory was 130.2 MB in the beginning and 262.9 MB in the end (delta: -132.7 MB). Peak memory consumption was 185.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.5s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 130 SDtfs, 261 SDslu, 261 SDs, 0 SdLazy, 1017 SolverSat, 242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=1, 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, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 52 PreInvPairs, 62 NumberOfFragments, 305 HoareAnnotationTreeSize, 52 FomulaSimplifications, 946 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 19 FomulaSimplificationsInter, 855 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 20379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 39/41 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...