/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/array-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:21:38,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:21:38,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:21:38,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:21:38,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:21:38,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:21:38,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:21:38,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:21:38,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:21:38,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:21:38,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:21:38,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:21:38,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:21:38,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:21:38,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:21:38,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:21:38,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:21:38,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:21:38,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:21:38,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:21:38,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:21:38,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:21:38,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:21:38,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:21:38,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:21:38,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:21:38,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:21:38,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:21:38,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:21:38,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:21:38,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:21:38,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:21:38,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:21:38,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:21:38,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:21:38,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:21:38,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:21:38,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:21:38,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:21:38,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:21:38,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:21:38,147 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 09:21:38,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:21:38,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:21:38,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:21:38,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:21:38,208 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:21:38,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:21:38,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:21:38,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:21:38,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:21:38,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:21:38,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:21:38,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:21:38,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:21:38,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:21:38,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:21:38,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:21:38,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:21:38,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:21:38,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:21:38,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:21:38,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:21:38,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:21:38,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:21:38,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:21:38,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:21:38,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:21:38,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:21:38,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:21:38,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:21:38,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:21:38,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:21:38,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:21:38,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:21:38,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:21:38,664 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:21:38,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-10-28 09:21:38,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e67957fc3/5e0d028db3464d17baef59abb1bec828/FLAGbd30d97f5 [2020-10-28 09:21:39,468 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:21:39,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-10-28 09:21:39,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e67957fc3/5e0d028db3464d17baef59abb1bec828/FLAGbd30d97f5 [2020-10-28 09:21:39,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e67957fc3/5e0d028db3464d17baef59abb1bec828 [2020-10-28 09:21:39,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:21:39,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:21:39,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:21:39,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:21:39,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:21:39,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:21:39" (1/1) ... [2020-10-28 09:21:39,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d047bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:39, skipping insertion in model container [2020-10-28 09:21:39,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:21:39" (1/1) ... [2020-10-28 09:21:39,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:21:39,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:21:40,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:21:40,162 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:21:40,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:21:40,210 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:21:40,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40 WrapperNode [2020-10-28 09:21:40,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:21:40,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:21:40,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:21:40,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:21:40,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (1/1) ... [2020-10-28 09:21:40,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:21:40,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:21:40,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:21:40,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:21:40,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (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 09:21:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:21:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:21:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:21:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:21:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 09:21:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:21:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:21:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:21:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:21:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 09:21:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 09:21:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:21:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:21:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:21:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 09:21:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:21:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 09:21:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:21:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 09:21:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:21:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:21:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:21:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:21:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:21:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:21:40,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:21:40,856 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 09:21:40,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:40 BoogieIcfgContainer [2020-10-28 09:21:40,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:21:40,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:21:40,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:21:40,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:21:40,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:21:39" (1/3) ... [2020-10-28 09:21:40,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8c12e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:21:40, skipping insertion in model container [2020-10-28 09:21:40,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:40" (2/3) ... [2020-10-28 09:21:40,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8c12e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:21:40, skipping insertion in model container [2020-10-28 09:21:40,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:40" (3/3) ... [2020-10-28 09:21:40,867 INFO L111 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-10-28 09:21:40,879 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:21:40,884 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:21:40,898 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:21:40,924 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:21:40,925 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:21:40,925 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:21:40,925 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:21:40,925 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:21:40,925 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:21:40,925 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:21:40,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:21:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-28 09:21:40,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 09:21:40,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:40,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:21:40,950 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:40,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:40,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1917384497, now seen corresponding path program 1 times [2020-10-28 09:21:40,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:40,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212240953] [2020-10-28 09:21:40,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:41,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:41,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 09:21:41,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-28 09:21:41,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:41,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 09:21:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:21:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:41,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:41,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:41,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:41,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 09:21:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:41,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:41,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:41,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:21:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:41,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:41,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:21:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:21:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:41,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:21:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:41,600 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 09:21:41,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212240953] [2020-10-28 09:21:41,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:21:41,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:21:41,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743010374] [2020-10-28 09:21:41,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:21:41,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:41,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:21:41,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:21:41,627 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-10-28 09:21:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:41,839 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2020-10-28 09:21:41,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:21:41,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-28 09:21:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:41,850 INFO L225 Difference]: With dead ends: 66 [2020-10-28 09:21:41,850 INFO L226 Difference]: Without dead ends: 33 [2020-10-28 09:21:41,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:21:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-28 09:21:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-10-28 09:21:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-28 09:21:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-28 09:21:41,899 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2020-10-28 09:21:41,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:41,899 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-28 09:21:41,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:21:41,899 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-28 09:21:41,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 09:21:41,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:41,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:21:41,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:21:41,901 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:41,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1115967253, now seen corresponding path program 1 times [2020-10-28 09:21:41,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:41,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636344630] [2020-10-28 09:21:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:41,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:42,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 09:21:42,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:42,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-28 09:21:42,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:42,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:21:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 09:21:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 09:21:42,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:42,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:42,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:42,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:42,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:42,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:21:42,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:42,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:42,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:42,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:42,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:42,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:21:42,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:42,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 09:21:42,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:42,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:42,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:21:42,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:21:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:21:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:21:42,230 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 09:21:42,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636344630] [2020-10-28 09:21:42,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:21:42,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 09:21:42,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482625393] [2020-10-28 09:21:42,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 09:21:42,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:42,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 09:21:42,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:21:42,235 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 6 states. [2020-10-28 09:21:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:42,498 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-10-28 09:21:42,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:21:42,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-28 09:21:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:42,500 INFO L225 Difference]: With dead ends: 52 [2020-10-28 09:21:42,500 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 09:21:42,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 09:21:42,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 09:21:42,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-28 09:21:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-28 09:21:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-10-28 09:21:42,511 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2020-10-28 09:21:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:42,511 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-10-28 09:21:42,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 09:21:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-10-28 09:21:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 09:21:42,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:42,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:21:42,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:21:42,513 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:42,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:42,514 INFO L82 PathProgramCache]: Analyzing trace with hash -891180873, now seen corresponding path program 1 times [2020-10-28 09:21:42,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:42,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250970157] [2020-10-28 09:21:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:42,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-28 09:21:42,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:42,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 09:21:42,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:42,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:42,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:21:42,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 09:21:42,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 09:21:42,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:42,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:42,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:42,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:42,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:21:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:42,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:42,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:42,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:42,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:42,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:42,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:21:42,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:42,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 09:21:42,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:42,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:42,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:21:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 09:21:42,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250970157] [2020-10-28 09:21:42,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:21:42,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:21:42,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958154576] [2020-10-28 09:21:42,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:21:42,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:42,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:21:42,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:21:42,861 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-10-28 09:21:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:43,006 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-10-28 09:21:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:21:43,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-28 09:21:43,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:43,009 INFO L225 Difference]: With dead ends: 53 [2020-10-28 09:21:43,009 INFO L226 Difference]: Without dead ends: 39 [2020-10-28 09:21:43,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:21:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-28 09:21:43,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2020-10-28 09:21:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 09:21:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-28 09:21:43,022 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2020-10-28 09:21:43,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:43,022 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-28 09:21:43,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:21:43,023 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-28 09:21:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 09:21:43,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:43,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:21:43,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:21:43,024 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:43,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1127573143, now seen corresponding path program 1 times [2020-10-28 09:21:43,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:43,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644664933] [2020-10-28 09:21:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:43,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:43,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:43,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:43,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 09:21:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:21:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-28 09:21:43,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:43,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:43,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:21:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 09:21:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:21:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:21:43,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:43,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:43,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:43,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:43,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:21:43,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:43,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:43,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:43,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:43,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:43,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:43,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:21:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 09:21:43,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:43,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 09:21:43,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644664933] [2020-10-28 09:21:43,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:21:43,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:21:43,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106701326] [2020-10-28 09:21:43,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:21:43,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:21:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:21:43,880 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 5 states. [2020-10-28 09:21:44,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:44,014 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-10-28 09:21:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:21:44,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-28 09:21:44,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:44,016 INFO L225 Difference]: With dead ends: 52 [2020-10-28 09:21:44,016 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 09:21:44,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:21:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 09:21:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-28 09:21:44,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 09:21:44,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-28 09:21:44,029 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 27 [2020-10-28 09:21:44,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:44,029 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-28 09:21:44,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:21:44,029 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-28 09:21:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 09:21:44,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:44,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:21:44,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 09:21:44,031 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1385738581, now seen corresponding path program 1 times [2020-10-28 09:21:44,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:44,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686483773] [2020-10-28 09:21:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:44,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:44,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:44,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:44,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:45,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:45,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 09:21:45,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:21:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-28 09:21:45,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:45,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:21:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 09:21:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:21:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:21:45,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:45,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:45,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:45,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:45,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:45,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:21:45,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:45,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:45,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:21:45,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:45,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:45,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:21:45,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 09:21:45,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:45,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:21:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:21:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:21:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:45,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 09:21:45,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686483773] [2020-10-28 09:21:45,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:21:45,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 09:21:45,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530708822] [2020-10-28 09:21:45,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:21:45,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:45,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:21:45,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:21:45,934 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2020-10-28 09:21:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:46,144 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2020-10-28 09:21:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 09:21:46,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-28 09:21:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:46,146 INFO L225 Difference]: With dead ends: 56 [2020-10-28 09:21:46,146 INFO L226 Difference]: Without dead ends: 35 [2020-10-28 09:21:46,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 09:21:46,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-28 09:21:46,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-10-28 09:21:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-28 09:21:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-10-28 09:21:46,158 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 27 [2020-10-28 09:21:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:46,158 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-10-28 09:21:46,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:21:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-10-28 09:21:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 09:21:46,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:46,160 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 09:21:46,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 09:21:46,162 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:46,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:46,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1880886515, now seen corresponding path program 2 times [2020-10-28 09:21:46,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:46,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549575676] [2020-10-28 09:21:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:46,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:46,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:46,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:50,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 09:21:50,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:21:50,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4146 [2020-10-28 09:21:50,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:50,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:50,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:21:50,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 09:21:50,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 09:21:50,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:50,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:50,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:50,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:50,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:50,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:21:50,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:50,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:50,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:50,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:50,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:50,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 09:21:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 09:21:50,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:50,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 09:21:50,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549575676] [2020-10-28 09:21:50,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:21:50,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 09:21:50,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719687985] [2020-10-28 09:21:50,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 09:21:50,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:50,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 09:21:50,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:21:50,449 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2020-10-28 09:21:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:50,633 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2020-10-28 09:21:50,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 09:21:50,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-28 09:21:50,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:50,636 INFO L225 Difference]: With dead ends: 63 [2020-10-28 09:21:50,637 INFO L226 Difference]: Without dead ends: 49 [2020-10-28 09:21:50,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:21:50,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-28 09:21:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2020-10-28 09:21:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-28 09:21:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-10-28 09:21:50,653 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 29 [2020-10-28 09:21:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:50,654 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-10-28 09:21:50,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 09:21:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-10-28 09:21:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 09:21:50,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:50,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:21:50,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 09:21:50,660 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:50,661 INFO L82 PathProgramCache]: Analyzing trace with hash 414127001, now seen corresponding path program 3 times [2020-10-28 09:21:50,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:50,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398519860] [2020-10-28 09:21:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:50,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:50,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:55,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:55,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 09:21:55,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:21:55,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 09:21:55,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:55,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:21:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 09:21:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:21:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:55,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:21:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:55,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:55,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:21:55,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:21:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:21:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:55,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:55,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:55,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:21:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:55,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:55,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:21:55,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 09:21:55,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:21:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 09:21:55,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:21:55,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:21:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:21:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:21:55,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:21:55,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:21:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 09:21:55,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398519860] [2020-10-28 09:21:55,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:21:55,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 09:21:55,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597183179] [2020-10-28 09:21:55,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:21:55,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:21:55,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:21:55,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:21:55,836 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 7 states. [2020-10-28 09:21:56,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:21:56,003 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2020-10-28 09:21:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:21:56,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-28 09:21:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:21:56,005 INFO L225 Difference]: With dead ends: 71 [2020-10-28 09:21:56,005 INFO L226 Difference]: Without dead ends: 57 [2020-10-28 09:21:56,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:21:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-28 09:21:56,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 40. [2020-10-28 09:21:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-28 09:21:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-10-28 09:21:56,018 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 32 [2020-10-28 09:21:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:21:56,019 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-10-28 09:21:56,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:21:56,020 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-10-28 09:21:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-28 09:21:56,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:21:56,022 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] [2020-10-28 09:21:56,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 09:21:56,023 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:21:56,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:21:56,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1178714931, now seen corresponding path program 4 times [2020-10-28 09:21:56,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:21:56,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112112285] [2020-10-28 09:21:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:21:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:21:56,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:56,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:56,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:56,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:56,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:21:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:01,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 09:22:01,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:22:01,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 09:22:01,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:01,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:22:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 09:22:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 09:22:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:01,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:22:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:01,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:01,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:22:01,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:22:01,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:22:01,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:01,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:01,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:22:01,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:22:01,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:22:01,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:22:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:01,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:01,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 09:22:01,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:22:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 09:22:01,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:01,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:22:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:22:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:22:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:01,382 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-28 09:22:01,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112112285] [2020-10-28 09:22:01,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:22:01,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 09:22:01,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939189843] [2020-10-28 09:22:01,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 09:22:01,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:22:01,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 09:22:01,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-28 09:22:01,385 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 11 states. [2020-10-28 09:22:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:22:01,796 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-10-28 09:22:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 09:22:01,796 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2020-10-28 09:22:01,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:22:01,797 INFO L225 Difference]: With dead ends: 53 [2020-10-28 09:22:01,798 INFO L226 Difference]: Without dead ends: 49 [2020-10-28 09:22:01,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-10-28 09:22:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-28 09:22:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-10-28 09:22:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 09:22:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-28 09:22:01,814 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 35 [2020-10-28 09:22:01,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:22:01,815 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-28 09:22:01,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 09:22:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-28 09:22:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 09:22:01,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:22:01,820 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-28 09:22:01,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 09:22:01,821 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:22:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:22:01,822 INFO L82 PathProgramCache]: Analyzing trace with hash -2085443566, now seen corresponding path program 1 times [2020-10-28 09:22:01,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:22:01,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714131818] [2020-10-28 09:22:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:22:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:01,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:01,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:04,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:05,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:06,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:06,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 09:22:06,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 09:22:06,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-28 09:22:06,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:06,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:06,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:22:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 09:22:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 09:22:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:22:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:06,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:06,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:06,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:22:06,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:22:06,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:22:06,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:06,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:22:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:22:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:22:06,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:22:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:06,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:06,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:06,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 09:22:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:22:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 09:22:06,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:06,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:22:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:22:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 09:22:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-28 09:22:06,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714131818] [2020-10-28 09:22:06,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:22:06,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:22:06,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119916383] [2020-10-28 09:22:06,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:22:06,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:22:06,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:22:06,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:22:06,995 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2020-10-28 09:22:07,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:22:07,090 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2020-10-28 09:22:07,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:22:07,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-10-28 09:22:07,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:22:07,092 INFO L225 Difference]: With dead ends: 60 [2020-10-28 09:22:07,092 INFO L226 Difference]: Without dead ends: 47 [2020-10-28 09:22:07,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:22:07,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-28 09:22:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-28 09:22:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 09:22:07,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-28 09:22:07,107 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 38 [2020-10-28 09:22:07,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:22:07,108 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-28 09:22:07,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:22:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-28 09:22:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-28 09:22:07,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:22:07,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:22:07,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 09:22:07,110 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:22:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:22:07,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1630709698, now seen corresponding path program 1 times [2020-10-28 09:22:07,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:22:07,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320286453] [2020-10-28 09:22:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:22:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:07,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:07,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:07,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:07,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:07,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:12,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:12,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 09:22:12,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:22:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 09:22:12,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:12,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:22:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 09:22:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 09:22:12,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:12,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:22:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:12,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:22:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:22:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:12,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:22:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:12,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:12,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:12,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:12,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 09:22:12,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:22:12,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 09:22:12,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:12,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:22:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:22:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 09:22:12,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:12,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 09:22:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:22:12,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:22:12,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:22:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 09:22:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:22:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:22:12,406 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 09:22:12,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320286453] [2020-10-28 09:22:12,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:22:12,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 09:22:12,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932655760] [2020-10-28 09:22:12,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 09:22:12,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:22:12,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 09:22:12,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-28 09:22:12,411 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 11 states. [2020-10-28 09:22:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:22:12,707 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2020-10-28 09:22:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 09:22:12,707 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 44 [2020-10-28 09:22:12,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:22:12,708 INFO L225 Difference]: With dead ends: 48 [2020-10-28 09:22:12,708 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 09:22:12,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-28 09:22:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 09:22:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 09:22:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 09:22:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 09:22:12,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-10-28 09:22:12,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:22:12,712 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 09:22:12,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 09:22:12,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 09:22:12,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 09:22:12,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 09:22:12,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 09:22:13,053 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 14) no Hoare annotation was computed. [2020-10-28 09:22:13,053 INFO L274 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-10-28 09:22:13,053 INFO L274 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-10-28 09:22:13,053 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 14) the Hoare annotation is: true [2020-10-28 09:22:13,053 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-10-28 09:22:13,053 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-10-28 09:22:13,055 INFO L270 CegarLoopResult]: At program point L23-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= init_~a.offset |init_#in~a.offset|)) (.cse1 (+ |init_#in~size| init_~i~0)) (.cse2 (= init_~a.base |init_#in~a.base|))) (or (and .cse0 (<= .cse1 (+ init_~size 1)) .cse2 (<= init_~i~0 1) (<= 1 init_~i~0)) (and .cse0 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= .cse1 init_~size) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (<= 0 init_~i~0) .cse2 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (<= init_~i~0 0)) (not (= (select (select |#memory_$Pointer$.base| |init_#in~a.base|) (+ |init_#in~a.offset| 4)) 0)))) [2020-10-28 09:22:13,055 INFO L274 CegarLoopResult]: For program point L23-4(lines 20 27) no Hoare annotation was computed. [2020-10-28 09:22:13,056 INFO L270 CegarLoopResult]: At program point initENTRY(lines 20 27) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-28 09:22:13,056 INFO L274 CegarLoopResult]: For program point initEXIT(lines 20 27) no Hoare annotation was computed. [2020-10-28 09:22:13,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:22:13,056 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 09:22:13,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:22:13,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:22:13,056 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 09:22:13,057 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 09:22:13,057 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:22:13,057 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2020-10-28 09:22:13,058 INFO L270 CegarLoopResult]: At program point L35-3(lines 35 41) the Hoare annotation is: (let ((.cse2 (select |#memory_$Pointer$.base| |main_~#a~0.base|))) (let ((.cse0 (= main_~flag~0 0)) (.cse1 (not (= (select .cse2 (+ |main_~#a~0.offset| 4)) 0)))) (or (<= 1 main_~flag~0) (and .cse0 (= main_~i~1 0) .cse1) (and (= (select (select |#memory_$Pointer$.offset| |main_~#a~0.base|) |main_~#a~0.offset|) 0) .cse0 (not (= 0 (select .cse2 (+ (* main_~i~1 4) |main_~#a~0.offset|)))) (<= main_~i~1 1) (= (select .cse2 |main_~#a~0.offset|) 0) .cse1)))) [2020-10-28 09:22:13,058 INFO L274 CegarLoopResult]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2020-10-28 09:22:13,058 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 28 48) no Hoare annotation was computed. [2020-10-28 09:22:13,058 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 28 48) no Hoare annotation was computed. [2020-10-28 09:22:13,058 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-28 09:22:13,058 INFO L274 CegarLoopResult]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2020-10-28 09:22:13,058 INFO L270 CegarLoopResult]: At program point L42-3(lines 42 46) the Hoare annotation is: (<= 1 main_~flag~0) [2020-10-28 09:22:13,059 INFO L274 CegarLoopResult]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2020-10-28 09:22:13,059 INFO L270 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (= main_~flag~0 0) [2020-10-28 09:22:13,059 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-10-28 09:22:13,059 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 28 48) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-28 09:22:13,059 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-10-28 09:22:13,059 INFO L274 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed. [2020-10-28 09:22:13,059 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-10-28 09:22:13,060 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-28 09:22:13,061 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 15) the Hoare annotation is: true [2020-10-28 09:22:13,061 INFO L277 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-10-28 09:22:13,061 INFO L274 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-10-28 09:22:13,061 INFO L274 CegarLoopResult]: For program point L15-4(line 15) no Hoare annotation was computed. [2020-10-28 09:22:13,061 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 15) no Hoare annotation was computed. [2020-10-28 09:22:13,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,114 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,114 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,114 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:22:13 BoogieIcfgContainer [2020-10-28 09:22:13,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:22:13,125 INFO L168 Benchmark]: Toolchain (without parser) took 33294.20 ms. Allocated memory was 158.3 MB in the beginning and 331.4 MB in the end (delta: 173.0 MB). Free memory was 133.8 MB in the beginning and 258.1 MB in the end (delta: -124.4 MB). Peak memory consumption was 50.2 MB. Max. memory is 8.0 GB. [2020-10-28 09:22:13,125 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:22:13,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.07 ms. Allocated memory is still 158.3 MB. Free memory was 133.0 MB in the beginning and 123.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:22:13,131 INFO L168 Benchmark]: Boogie Preprocessor took 43.22 ms. Allocated memory is still 158.3 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:22:13,132 INFO L168 Benchmark]: RCFGBuilder took 602.27 ms. Allocated memory is still 158.3 MB. Free memory was 121.5 MB in the beginning and 137.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. [2020-10-28 09:22:13,136 INFO L168 Benchmark]: TraceAbstraction took 32261.10 ms. Allocated memory was 158.3 MB in the beginning and 331.4 MB in the end (delta: 173.0 MB). Free memory was 136.9 MB in the beginning and 258.1 MB in the end (delta: -121.2 MB). Peak memory consumption was 52.8 MB. Max. memory is 8.0 GB. [2020-10-28 09:22:13,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 372.07 ms. Allocated memory is still 158.3 MB. Free memory was 133.0 MB in the beginning and 123.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.22 ms. Allocated memory is still 158.3 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 602.27 ms. Allocated memory is still 158.3 MB. Free memory was 121.5 MB in the beginning and 137.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 32261.10 ms. Allocated memory was 158.3 MB in the beginning and 331.4 MB in the end (delta: 173.0 MB). Free memory was 136.9 MB in the beginning and 258.1 MB in the end (delta: -121.2 MB). Peak memory consumption was 52.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: 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: 23]: Loop Invariant [2020-10-28 09:22:13,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-28 09:22:13,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 09:22:13,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((a == a && \old(size) + i <= size + 1) && a == a) && i <= 1) && 1 <= i) || (((((((((a == a && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(size) + i <= size) && \old(unknown-#length-unknown) == unknown-#length-unknown) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && 0 <= i) && a == a) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) && i <= 0)) || !(#memory_$Pointer$[a][a + 4] == 0) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 35]: Loop Invariant [2020-10-28 09:22:13,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-28 09:22:13,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,176 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-28 09:22:13,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-28 09:22:13,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (1 <= flag || ((flag == 0 && i == 0) && !(#memory_$Pointer$[a][a + 4] == 0))) || (((((#memory_$Pointer$[a][a] == 0 && flag == 0) && !(0 == #memory_$Pointer$[a][i * 4 + a])) && i <= 1) && #memory_$Pointer$[a][a] == 0) && !(#memory_$Pointer$[a][a + 4] == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 268 SDtfs, 229 SDslu, 505 SDs, 0 SdLazy, 732 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 40 PreInvPairs, 46 NumberOfFragments, 197 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 79 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 290 ConstructedInterpolants, 0 QuantifiedInterpolants, 35267 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 56/74 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...