/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/systemc/pipeline.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:35:46,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:35:46,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:35:46,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:35:46,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:35:46,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:35:46,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:35:46,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:35:46,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:35:46,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:35:46,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:35:46,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:35:46,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:35:46,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:35:46,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:35:46,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:35:46,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:35:46,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:35:46,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:35:46,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:35:46,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:35:46,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:35:46,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:35:46,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:35:46,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:35:46,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:35:46,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:35:46,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:35:46,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:35:46,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:35:46,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:35:46,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:35:46,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:35:46,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:35:46,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:35:46,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:35:46,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:35:46,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:35:46,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:35:46,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:35:46,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:35:46,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 14:35:46,355 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:35:46,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:35:46,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:35:46,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:35:46,358 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:35:46,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:35:46,359 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:35:46,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:35:46,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:35:46,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:35:46,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:35:46,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:35:46,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:35:46,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:35:46,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:35:46,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:35:46,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:35:46,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:35:46,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:35:46,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:35:46,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:35:46,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:35:46,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:35:46,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:35:46,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:35:46,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:35:46,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:35:46,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:35:46,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:35:46,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:35:46,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:35:46,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:35:46,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:35:46,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:35:46,857 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:35:46,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pipeline.cil-2.c [2020-10-29 14:35:46,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65073026c/95cb7e5f761840149f7143169a8dec73/FLAGc3b0b513f [2020-10-29 14:35:47,684 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:35:47,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pipeline.cil-2.c [2020-10-29 14:35:47,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65073026c/95cb7e5f761840149f7143169a8dec73/FLAGc3b0b513f [2020-10-29 14:35:48,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65073026c/95cb7e5f761840149f7143169a8dec73 [2020-10-29 14:35:48,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:35:48,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:35:48,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:35:48,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:35:48,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:35:48,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccd17af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48, skipping insertion in model container [2020-10-29 14:35:48,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:35:48,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:35:48,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:35:48,412 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:35:48,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:35:48,582 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:35:48,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48 WrapperNode [2020-10-29 14:35:48,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:35:48,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:35:48,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:35:48,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:35:48,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... [2020-10-29 14:35:48,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:35:48,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:35:48,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:35:48,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:35:48,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:35:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:35:48,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:35:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:35:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-29 14:35:48,773 INFO L138 BoogieDeclarations]: Found implementation of procedure N_generate [2020-10-29 14:35:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure S1_addsub [2020-10-29 14:35:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure S2_presdbl [2020-10-29 14:35:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure S3_zero [2020-10-29 14:35:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure D_print [2020-10-29 14:35:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-29 14:35:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-29 14:35:48,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:35:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:35:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:35:48,777 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:35:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:35:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 14:35:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-29 14:35:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure N_generate [2020-10-29 14:35:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure S1_addsub [2020-10-29 14:35:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure S2_presdbl [2020-10-29 14:35:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure S3_zero [2020-10-29 14:35:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure D_print [2020-10-29 14:35:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-29 14:35:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-29 14:35:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:35:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:35:48,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:35:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:35:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:35:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:35:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:35:49,797 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:35:49,797 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 14:35:49,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:35:49 BoogieIcfgContainer [2020-10-29 14:35:49,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:35:49,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:35:49,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:35:49,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:35:49,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:35:48" (1/3) ... [2020-10-29 14:35:49,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6136f938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:35:49, skipping insertion in model container [2020-10-29 14:35:49,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:35:48" (2/3) ... [2020-10-29 14:35:49,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6136f938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:35:49, skipping insertion in model container [2020-10-29 14:35:49,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:35:49" (3/3) ... [2020-10-29 14:35:49,809 INFO L111 eAbstractionObserver]: Analyzing ICFG pipeline.cil-2.c [2020-10-29 14:35:49,821 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:35:49,827 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:35:49,841 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:35:49,871 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:35:49,871 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:35:49,871 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:35:49,871 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:35:49,871 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:35:49,871 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:35:49,872 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:35:49,872 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:35:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-10-29 14:35:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 14:35:49,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:35:49,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:35:49,913 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:35:49,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:35:49,920 INFO L82 PathProgramCache]: Analyzing trace with hash 252079489, now seen corresponding path program 1 times [2020-10-29 14:35:49,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:35:49,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821340127] [2020-10-29 14:35:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:35:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:50,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:50,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:51,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:52,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:52,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:52,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:52,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:52,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:53,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:55,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 14:35:55,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 14:35:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 14:35:55,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:55,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:35:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 14:35:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 14:35:55,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 14:35:55,701 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:35:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:35:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:55,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:55,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:55,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:35:55,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:35:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 14:35:55,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:55,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:35:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:35:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:35:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:55,982 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:35:55,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:35:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:56,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 14:35:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:35:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-29 14:35:56,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:56,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:35:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:35:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 14:35:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:35:56,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 14:35:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:35:56,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:35:56,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:35:56,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 14:35:56,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:35:56,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-29 14:35:56,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:35:56,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:35:56,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:35:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:35:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 14:35:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:35:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 14:35:56,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821340127] [2020-10-29 14:35:57,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:35:57,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:35:57,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797436624] [2020-10-29 14:35:57,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:35:57,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:35:57,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:35:57,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:35:57,023 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 7 states. [2020-10-29 14:35:57,387 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:01,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:36:01,123 INFO L93 Difference]: Finished difference Result 893 states and 1576 transitions. [2020-10-29 14:36:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 14:36:01,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-29 14:36:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:36:01,162 INFO L225 Difference]: With dead ends: 893 [2020-10-29 14:36:01,162 INFO L226 Difference]: Without dead ends: 713 [2020-10-29 14:36:01,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 14:36:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-10-29 14:36:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 627. [2020-10-29 14:36:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-10-29 14:36:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1088 transitions. [2020-10-29 14:36:01,313 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1088 transitions. Word has length 100 [2020-10-29 14:36:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:36:01,314 INFO L481 AbstractCegarLoop]: Abstraction has 627 states and 1088 transitions. [2020-10-29 14:36:01,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:36:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1088 transitions. [2020-10-29 14:36:01,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:36:01,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:36:01,327 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:36:01,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:36:01,328 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:36:01,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:36:01,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1670219867, now seen corresponding path program 1 times [2020-10-29 14:36:01,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:36:01,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932580149] [2020-10-29 14:36:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:36:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:01,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:02,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:02,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:02,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:05,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:06,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:36:06,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 24 [2020-10-29 14:36:06,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 14:36:06,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:06,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-29 14:36:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:36:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:36:06,707 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:36:06,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:36:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:06,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:06,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:36:06,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:36:06,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:06,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:36:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:36:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:06,868 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:36:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:36:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:07,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:08,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:11,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:11,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 14:36:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 14:36:11,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:12,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:12,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:12,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:12,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:36:12,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:12,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:12,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:12,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:12,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:36:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:12,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:12,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:13,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:13,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:13,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:17,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:17,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:17,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-29 14:36:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 14:36:17,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:17,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 14:36:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:17,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:17,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:17,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:17,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:17,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:36:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:17,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-29 14:36:17,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932580149] [2020-10-29 14:36:17,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:36:17,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:36:17,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436138009] [2020-10-29 14:36:17,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:36:17,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:36:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:36:17,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:36:17,201 INFO L87 Difference]: Start difference. First operand 627 states and 1088 transitions. Second operand 7 states. [2020-10-29 14:36:17,520 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:36:18,389 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:18,664 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:20,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:36:20,072 INFO L93 Difference]: Finished difference Result 3499 states and 6296 transitions. [2020-10-29 14:36:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:36:20,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-29 14:36:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:36:20,114 INFO L225 Difference]: With dead ends: 3499 [2020-10-29 14:36:20,114 INFO L226 Difference]: Without dead ends: 2879 [2020-10-29 14:36:20,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:36:20,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2020-10-29 14:36:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2457. [2020-10-29 14:36:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2457 states. [2020-10-29 14:36:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 4276 transitions. [2020-10-29 14:36:20,334 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 4276 transitions. Word has length 202 [2020-10-29 14:36:20,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:36:20,335 INFO L481 AbstractCegarLoop]: Abstraction has 2457 states and 4276 transitions. [2020-10-29 14:36:20,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:36:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 4276 transitions. [2020-10-29 14:36:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:36:20,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:36:20,361 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:36:20,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:36:20,361 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:36:20,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:36:20,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1781672807, now seen corresponding path program 1 times [2020-10-29 14:36:20,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:36:20,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876778853] [2020-10-29 14:36:20,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:36:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:20,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:20,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:21,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:21,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:22,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:25,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:36:25,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 14:36:25,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 14:36:25,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:25,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:25,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:25,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 14:36:25,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:25,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:25,735 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:36:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:36:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:25,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:25,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:36:25,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:25,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:36:25,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:25,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:25,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:36:25,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:25,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:36:25,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:25,901 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:36:25,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:36:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:25,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:26,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:28,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:28,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 14:36:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:31,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:31,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:31,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:31,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:31,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:36:31,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:31,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:36:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:31,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:31,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:32,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:36,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:36,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:36,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:36:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 14:36:36,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:36,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-29 14:36:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:36,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:36,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:36,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:36,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:36:36,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:36,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-29 14:36:36,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876778853] [2020-10-29 14:36:36,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:36:36,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:36:36,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380771828] [2020-10-29 14:36:36,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:36:36,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:36:36,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:36:36,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:36:36,206 INFO L87 Difference]: Start difference. First operand 2457 states and 4276 transitions. Second operand 7 states. [2020-10-29 14:36:36,493 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:36:37,289 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:37,580 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:39,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:36:39,320 INFO L93 Difference]: Finished difference Result 13733 states and 27424 transitions. [2020-10-29 14:36:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:36:39,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-29 14:36:39,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:36:39,551 INFO L225 Difference]: With dead ends: 13733 [2020-10-29 14:36:39,551 INFO L226 Difference]: Without dead ends: 11283 [2020-10-29 14:36:39,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:36:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11283 states. [2020-10-29 14:36:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11283 to 9759. [2020-10-29 14:36:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9759 states. [2020-10-29 14:36:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9759 states to 9759 states and 19378 transitions. [2020-10-29 14:36:40,913 INFO L78 Accepts]: Start accepts. Automaton has 9759 states and 19378 transitions. Word has length 202 [2020-10-29 14:36:40,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:36:40,914 INFO L481 AbstractCegarLoop]: Abstraction has 9759 states and 19378 transitions. [2020-10-29 14:36:40,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:36:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9759 states and 19378 transitions. [2020-10-29 14:36:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:36:41,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:36:41,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:36:41,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:36:41,154 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:36:41,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:36:41,154 INFO L82 PathProgramCache]: Analyzing trace with hash 90712935, now seen corresponding path program 1 times [2020-10-29 14:36:41,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:36:41,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745103809] [2020-10-29 14:36:41,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:36:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:41,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:41,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:42,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:43,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:43,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:43,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:46,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:36:46,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-29 14:36:46,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 14:36:46,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:46,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 14:36:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:36:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:46,452 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:36:46,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:36:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:46,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:36:46,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:46,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:36:46,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:46,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:36:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:46,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:36:46,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:46,614 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:36:46,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:36:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:46,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:46,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:47,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:47,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:51,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:51,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 14:36:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:36:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:51,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 14:36:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:51,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:51,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:51,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:51,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:36:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:51,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:53,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:53,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:56,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:56,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:36:56,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:36:56,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:36:56,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:56,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-29 14:36:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:36:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:56,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:36:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:36:56,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:36:56,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:36:56,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:36:56,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:36:56,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:36:56,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:36:56,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:36:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:36:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:36:56,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:36:56,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:36:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-29 14:36:56,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745103809] [2020-10-29 14:36:56,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:36:56,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 14:36:56,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833121352] [2020-10-29 14:36:56,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 14:36:56,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:36:56,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 14:36:56,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 14:36:56,859 INFO L87 Difference]: Start difference. First operand 9759 states and 19378 transitions. Second operand 7 states. [2020-10-29 14:36:57,164 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:36:57,996 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:36:58,253 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:37:01,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:37:01,779 INFO L93 Difference]: Finished difference Result 43535 states and 116894 transitions. [2020-10-29 14:37:01,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 14:37:01,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-29 14:37:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:37:03,287 INFO L225 Difference]: With dead ends: 43535 [2020-10-29 14:37:03,287 INFO L226 Difference]: Without dead ends: 33783 [2020-10-29 14:37:03,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:37:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33783 states. [2020-10-29 14:37:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33783 to 29219. [2020-10-29 14:37:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29219 states. [2020-10-29 14:37:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29219 states to 29219 states and 77866 transitions. [2020-10-29 14:37:11,692 INFO L78 Accepts]: Start accepts. Automaton has 29219 states and 77866 transitions. Word has length 202 [2020-10-29 14:37:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:37:11,693 INFO L481 AbstractCegarLoop]: Abstraction has 29219 states and 77866 transitions. [2020-10-29 14:37:11,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 14:37:11,693 INFO L276 IsEmpty]: Start isEmpty. Operand 29219 states and 77866 transitions. [2020-10-29 14:37:13,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-29 14:37:13,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:37:13,793 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:37:13,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:37:13,793 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:37:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:37:13,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2094157035, now seen corresponding path program 1 times [2020-10-29 14:37:13,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:37:13,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525427368] [2020-10-29 14:37:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:37:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:13,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:13,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:13,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:13,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:14,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:16,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 14:37:18,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:37:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 14:37:18,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-29 14:37:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:37:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:19,118 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:37:19,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:37:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:19,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:19,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:37:19,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:37:19,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:37:19,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:19,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:37:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:37:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:37:19,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:19,289 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:37:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:37:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:19,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:23,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:23,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:23,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:24,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 14:37:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:24,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:37:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:24,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:37:24,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 14:37:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:24,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:37:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:24,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:24,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:25,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:26,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:29,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:29,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-29 14:37:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:37:29,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:29,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:37:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:37:29,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:37:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:37:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 14:37:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:37:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 14 proven. 62 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-29 14:37:29,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525427368] [2020-10-29 14:37:29,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:37:29,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 14:37:29,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567914028] [2020-10-29 14:37:29,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:37:29,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:37:29,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:37:29,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:37:29,553 INFO L87 Difference]: Start difference. First operand 29219 states and 77866 transitions. Second operand 8 states. [2020-10-29 14:37:29,861 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:37:30,198 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-29 14:37:31,054 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 14:37:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:37:46,205 INFO L93 Difference]: Finished difference Result 134626 states and 442504 transitions. [2020-10-29 14:37:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 14:37:46,205 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 202 [2020-10-29 14:37:46,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:37:49,779 INFO L225 Difference]: With dead ends: 134626 [2020-10-29 14:37:49,780 INFO L226 Difference]: Without dead ends: 105414 [2020-10-29 14:37:52,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-10-29 14:37:52,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105414 states. [2020-10-29 14:38:20,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105414 to 84443. [2020-10-29 14:38:20,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84443 states. [2020-10-29 14:38:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84443 states to 84443 states and 260138 transitions. [2020-10-29 14:38:27,259 INFO L78 Accepts]: Start accepts. Automaton has 84443 states and 260138 transitions. Word has length 202 [2020-10-29 14:38:27,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:38:27,259 INFO L481 AbstractCegarLoop]: Abstraction has 84443 states and 260138 transitions. [2020-10-29 14:38:27,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:38:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 84443 states and 260138 transitions. [2020-10-29 14:38:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-29 14:38:37,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:38:37,248 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:38:37,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 14:38:37,249 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:38:37,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:38:37,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1496021746, now seen corresponding path program 1 times [2020-10-29 14:38:37,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:38:37,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454963671] [2020-10-29 14:38:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:38:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:37,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:38,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:41,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:42,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-29 14:38:42,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:38:42,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 14:38:42,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:42,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:42,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:38:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 14:38:42,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 14:38:42,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:42,536 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 14:38:42,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:38:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:42,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:38:42,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:38:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:38:42,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:42,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:42,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:38:42,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:38:42,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:38:42,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:42,681 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 14:38:42,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:38:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:42,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:42,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:43,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:45,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:47,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 14:38:47,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:38:47,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 14:38:47,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:47,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:47,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:38:47,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 14:38:47,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 14:38:47,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:38:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:47,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:47,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 14:38:47,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:38:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 14:38:47,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:47,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:38:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:38:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 14:38:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:47,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 14:38:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:47,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:47,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:48,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:52,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 14:38:52,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 14:38:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:38:52,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:52,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:38:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 14:38:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 14:38:52,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:52,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:38:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:52,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:38:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:38:52,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:38:52,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:52,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 14:38:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:38:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:38:52,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:38:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:38:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:38:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:38:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 14:38:53,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454963671] [2020-10-29 14:38:53,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:38:53,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 14:38:53,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869249848] [2020-10-29 14:38:53,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 14:38:53,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:38:53,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 14:38:53,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-29 14:38:53,008 INFO L87 Difference]: Start difference. First operand 84443 states and 260138 transitions. Second operand 11 states. [2020-10-29 14:38:53,315 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-29 14:38:54,305 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 14:38:54,669 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 172