/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:37:37,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:37:37,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:37:37,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:37:37,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:37:37,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:37:37,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:37:37,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:37:37,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:37:37,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:37:37,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:37:37,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:37:37,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:37:37,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:37:37,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:37:37,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:37:37,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:37:37,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:37:37,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:37:37,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:37:37,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:37:37,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:37:37,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:37:37,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:37:37,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:37:37,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:37:37,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:37:37,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:37:37,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:37:37,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:37:37,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:37:37,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:37:37,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:37:37,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:37:37,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:37:37,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:37:37,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:37:37,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:37:37,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:37:37,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:37:37,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:37:37,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 09:37:37,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:37:37,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:37:37,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:37:37,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:37:37,418 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:37:37,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:37:37,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:37:37,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:37:37,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:37:37,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:37:37,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:37:37,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:37:37,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:37:37,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:37:37,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:37:37,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:37:37,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:37:37,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:37:37,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:37:37,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:37:37,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:37:37,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:37:37,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:37:37,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:37:37,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:37:37,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:37:37,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:37:37,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:37:37,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:37:37,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:37:37,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:37:37,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:37:37,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:37:37,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:37:37,912 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:37:37,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c [2020-10-28 09:37:38,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81de0b2f6/54cbca9f81d54fd1a4d6949bcf9c1317/FLAG4388e0e06 [2020-10-28 09:37:38,582 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:37:38,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/soft_float_5a.c.cil.c [2020-10-28 09:37:38,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81de0b2f6/54cbca9f81d54fd1a4d6949bcf9c1317/FLAG4388e0e06 [2020-10-28 09:37:38,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/81de0b2f6/54cbca9f81d54fd1a4d6949bcf9c1317 [2020-10-28 09:37:38,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:37:38,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:37:38,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:37:38,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:37:38,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:37:38,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:38" (1/1) ... [2020-10-28 09:37:38,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608a81e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:38, skipping insertion in model container [2020-10-28 09:37:38,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:38" (1/1) ... [2020-10-28 09:37:38,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:37:39,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:37:39,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:37:39,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:37:39,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:37:39,301 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:37:39,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39 WrapperNode [2020-10-28 09:37:39,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:37:39,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:37:39,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:37:39,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:37:39,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... [2020-10-28 09:37:39,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:37:39,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:37:39,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:37:39,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:37:39,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:37:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:37:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:37:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:37:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:37:39,444 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2020-10-28 09:37:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2020-10-28 09:37:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2020-10-28 09:37:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:37:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:37:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:37:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:37:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:37:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 09:37:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 09:37:39,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:37:39,449 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2020-10-28 09:37:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2020-10-28 09:37:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2020-10-28 09:37:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:37:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:37:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:37:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:37:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:37:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:37:40,101 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:37:40,102 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-28 09:37:40,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:40 BoogieIcfgContainer [2020-10-28 09:37:40,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:37:40,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:37:40,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:37:40,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:37:40,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:37:38" (1/3) ... [2020-10-28 09:37:40,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32586429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:37:40, skipping insertion in model container [2020-10-28 09:37:40,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:39" (2/3) ... [2020-10-28 09:37:40,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32586429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:37:40, skipping insertion in model container [2020-10-28 09:37:40,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:40" (3/3) ... [2020-10-28 09:37:40,114 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2020-10-28 09:37:40,129 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:37:40,134 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:37:40,149 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:37:40,182 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:37:40,182 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:37:40,182 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:37:40,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:37:40,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:37:40,183 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:37:40,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:37:40,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:37:40,205 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-10-28 09:37:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-28 09:37:40,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:40,217 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:40,217 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:40,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:40,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1471639594, now seen corresponding path program 1 times [2020-10-28 09:37:40,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:40,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782016739] [2020-10-28 09:37:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:40,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:40,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:41,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 09:37:45,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:37:45,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 09:37:45,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-28 09:37:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 09:37:45,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 09:37:45,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:45,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 09:37:45,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:45,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:37:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:45,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:45,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:45,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:37:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:45,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:37:45,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 09:37:45,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:45,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:45,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 09:37:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:45,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:45,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:45,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:45,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 09:37:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:45,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:45,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 09:37:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:45,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:45,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:45,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:37:45,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:45,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:37:45,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:45,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:37:45,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-28 09:37:45,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782016739] [2020-10-28 09:37:45,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:45,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:37:45,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500713677] [2020-10-28 09:37:45,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:37:45,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:45,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:37:45,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:37:45,700 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-10-28 09:37:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:46,102 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2020-10-28 09:37:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:37:46,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-10-28 09:37:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:46,115 INFO L225 Difference]: With dead ends: 124 [2020-10-28 09:37:46,116 INFO L226 Difference]: Without dead ends: 54 [2020-10-28 09:37:46,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-28 09:37:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-28 09:37:46,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-28 09:37:46,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2020-10-28 09:37:46,175 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 72 transitions. Word has length 50 [2020-10-28 09:37:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:46,177 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 72 transitions. [2020-10-28 09:37:46,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:37:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2020-10-28 09:37:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 09:37:46,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:46,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:46,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:37:46,182 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:46,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:46,183 INFO L82 PathProgramCache]: Analyzing trace with hash -32852944, now seen corresponding path program 1 times [2020-10-28 09:37:46,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:46,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690515899] [2020-10-28 09:37:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:46,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:46,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:46,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:46,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:46,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:47,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 09:37:51,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:37:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 09:37:51,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-28 09:37:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 09:37:51,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:51,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:51,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:51,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:37:51,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:51,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:37:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:51,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:51,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:51,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:51,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:37:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:51,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:37:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 09:37:51,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:51,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:51,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:51,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 09:37:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:51,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:51,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:51,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:51,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:51,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:51,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 09:37:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 09:37:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:51,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:37:51,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 09:37:51,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 09:37:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:51,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:37:51,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 09:37:51,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:51,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:37:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:37:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-28 09:37:51,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690515899] [2020-10-28 09:37:51,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:37:51,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:37:51,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707290342] [2020-10-28 09:37:51,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:51,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:51,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:51,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:51,412 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand 5 states. [2020-10-28 09:37:51,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:51,855 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2020-10-28 09:37:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 09:37:51,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-28 09:37:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:51,860 INFO L225 Difference]: With dead ends: 67 [2020-10-28 09:37:51,861 INFO L226 Difference]: Without dead ends: 54 [2020-10-28 09:37:51,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:37:51,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-28 09:37:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-28 09:37:51,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-28 09:37:51,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2020-10-28 09:37:51,885 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 52 [2020-10-28 09:37:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:51,886 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2020-10-28 09:37:51,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2020-10-28 09:37:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 09:37:51,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:51,894 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:51,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:37:51,894 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1621200846, now seen corresponding path program 1 times [2020-10-28 09:37:51,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:51,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069520334] [2020-10-28 09:37:51,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:51,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:52,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:52,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 09:37:56,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:37:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4372 [2020-10-28 09:37:56,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:37:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 09:37:56,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:37:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:37:56,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 09:37:56,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:56,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:56,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:56,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:37:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:56,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:56,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:37:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:56,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:37:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:56,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:56,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 09:37:56,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:37:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:37:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:37:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:56,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 09:37:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:56,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:56,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:56,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:37:56,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:37:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:37:56,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 09:37:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:56,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:37:56,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:56,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:37:56,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:37:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:56,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:37:56,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 09:37:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:56,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:56,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:37:56,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:37:56,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:37:56,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:37:56,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:37:56,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:37:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:37:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:37:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:37:56,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:37:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:37:56,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069520334] [2020-10-28 09:37:56,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:37:56,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:37:56,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511028988] [2020-10-28 09:37:56,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:37:56,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:37:56,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:37:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:37:56,505 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand 5 states. [2020-10-28 09:37:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:37:59,022 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2020-10-28 09:37:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:37:59,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-28 09:37:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:37:59,027 INFO L225 Difference]: With dead ends: 130 [2020-10-28 09:37:59,029 INFO L226 Difference]: Without dead ends: 85 [2020-10-28 09:37:59,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:37:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-28 09:37:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 75. [2020-10-28 09:37:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-28 09:37:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2020-10-28 09:37:59,064 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 52 [2020-10-28 09:37:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:37:59,066 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2020-10-28 09:37:59,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:37:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2020-10-28 09:37:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-28 09:37:59,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:37:59,072 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:37:59,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:37:59,072 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:37:59,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:37:59,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1952264301, now seen corresponding path program 1 times [2020-10-28 09:37:59,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:37:59,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878199069] [2020-10-28 09:37:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:37:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:37:59,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:59,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:59,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:37:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 09:38:03,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:38:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4075 [2020-10-28 09:38:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:38:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 09:38:03,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:03,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:38:03,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:03,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:03,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 09:38:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:38:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:38:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 09:38:03,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:03,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 09:38:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:03,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:03,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 09:38:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:03,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:03,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:03,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 09:38:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:38:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:03,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:03,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878199069] [2020-10-28 09:38:03,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:03,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:38:03,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090261964] [2020-10-28 09:38:03,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:38:03,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:03,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:38:03,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:38:03,327 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand 5 states. [2020-10-28 09:38:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:03,686 INFO L93 Difference]: Finished difference Result 141 states and 190 transitions. [2020-10-28 09:38:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 09:38:03,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-28 09:38:03,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:03,688 INFO L225 Difference]: With dead ends: 141 [2020-10-28 09:38:03,688 INFO L226 Difference]: Without dead ends: 88 [2020-10-28 09:38:03,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:38:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-28 09:38:03,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2020-10-28 09:38:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-28 09:38:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 108 transitions. [2020-10-28 09:38:03,724 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 108 transitions. Word has length 55 [2020-10-28 09:38:03,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:03,725 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 108 transitions. [2020-10-28 09:38:03,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:38:03,725 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 108 transitions. [2020-10-28 09:38:03,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-28 09:38:03,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:03,729 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:03,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 09:38:03,730 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:03,730 INFO L82 PathProgramCache]: Analyzing trace with hash 880882787, now seen corresponding path program 1 times [2020-10-28 09:38:03,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:03,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557081043] [2020-10-28 09:38:03,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:03,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:03,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:04,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:04,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 09:38:08,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 09:38:08,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4987 [2020-10-28 09:38:08,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:38:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:38:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:08,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:08,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:08,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:08,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:08,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:08,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:08,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 09:38:08,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:38:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 09:38:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:38:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 09:38:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 09:38:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:08,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:08,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:08,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 09:38:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:08,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:08,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 09:38:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:08,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:08,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:08,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:08,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:08,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:08,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557081043] [2020-10-28 09:38:08,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:08,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:38:08,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952883536] [2020-10-28 09:38:08,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:38:08,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:08,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:38:08,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:38:08,884 INFO L87 Difference]: Start difference. First operand 80 states and 108 transitions. Second operand 5 states. [2020-10-28 09:38:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:09,315 INFO L93 Difference]: Finished difference Result 152 states and 203 transitions. [2020-10-28 09:38:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:38:09,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-10-28 09:38:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:09,319 INFO L225 Difference]: With dead ends: 152 [2020-10-28 09:38:09,319 INFO L226 Difference]: Without dead ends: 81 [2020-10-28 09:38:09,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:38:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-28 09:38:09,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2020-10-28 09:38:09,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-28 09:38:09,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2020-10-28 09:38:09,351 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 56 [2020-10-28 09:38:09,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:09,353 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2020-10-28 09:38:09,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:38:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2020-10-28 09:38:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 09:38:09,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:09,354 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:09,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 09:38:09,355 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:09,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:09,356 INFO L82 PathProgramCache]: Analyzing trace with hash 2103416020, now seen corresponding path program 1 times [2020-10-28 09:38:09,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:09,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632444690] [2020-10-28 09:38:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:09,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:09,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:09,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 09:38:14,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:38:14,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 09:38:14,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 09:38:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 09:38:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:14,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:14,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:14,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:14,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:14,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:14,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:14,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 09:38:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:38:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:14,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 09:38:14,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:14,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 09:38:14,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 09:38:14,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 09:38:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:38:14,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:14,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 09:38:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:14,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:14,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:38:14,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 09:38:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:14,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:14,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:14,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:14,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 09:38:14,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:14,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:38:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-28 09:38:14,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632444690] [2020-10-28 09:38:14,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:14,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 09:38:14,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280995980] [2020-10-28 09:38:14,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:38:14,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:14,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:38:14,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:38:14,630 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand 7 states. [2020-10-28 09:38:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:15,139 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2020-10-28 09:38:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 09:38:15,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-28 09:38:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:15,142 INFO L225 Difference]: With dead ends: 107 [2020-10-28 09:38:15,142 INFO L226 Difference]: Without dead ends: 101 [2020-10-28 09:38:15,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-28 09:38:15,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-28 09:38:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 92. [2020-10-28 09:38:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-28 09:38:15,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 123 transitions. [2020-10-28 09:38:15,175 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 123 transitions. Word has length 57 [2020-10-28 09:38:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:15,175 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 123 transitions. [2020-10-28 09:38:15,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:38:15,176 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 123 transitions. [2020-10-28 09:38:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 09:38:15,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:15,177 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:15,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 09:38:15,177 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:15,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1143857136, now seen corresponding path program 1 times [2020-10-28 09:38:15,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:15,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615815897] [2020-10-28 09:38:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:15,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:15,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:15,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:15,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:38:20,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 09:38:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:20,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:20,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:20,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:20,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:20,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:20,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:20,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:20,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 09:38:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:20,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 09:38:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:20,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:20,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:20,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:20,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 09:38:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:20,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:20,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:20,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:20,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:20,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 09:38:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:20,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:20,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:20,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:20,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:20,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:20,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:20,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615815897] [2020-10-28 09:38:20,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:20,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 09:38:20,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254222765] [2020-10-28 09:38:20,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 09:38:20,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:20,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 09:38:20,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:38:20,374 INFO L87 Difference]: Start difference. First operand 92 states and 123 transitions. Second operand 6 states. [2020-10-28 09:38:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:21,018 INFO L93 Difference]: Finished difference Result 193 states and 275 transitions. [2020-10-28 09:38:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 09:38:21,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-10-28 09:38:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:21,021 INFO L225 Difference]: With dead ends: 193 [2020-10-28 09:38:21,021 INFO L226 Difference]: Without dead ends: 121 [2020-10-28 09:38:21,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-28 09:38:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-28 09:38:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 94. [2020-10-28 09:38:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-28 09:38:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2020-10-28 09:38:21,048 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 126 transitions. Word has length 59 [2020-10-28 09:38:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:21,050 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 126 transitions. [2020-10-28 09:38:21,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 09:38:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 126 transitions. [2020-10-28 09:38:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-28 09:38:21,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:21,051 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:21,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 09:38:21,052 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:21,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1846181312, now seen corresponding path program 1 times [2020-10-28 09:38:21,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:21,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904827989] [2020-10-28 09:38:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:21,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:21,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:21,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 09:38:26,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:38:26,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 09:38:26,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:26,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 09:38:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:26,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:26,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:26,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:26,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:26,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:26,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:26,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:26,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:26,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 09:38:26,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 09:38:26,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 09:38:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:26,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:26,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:26,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:26,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 09:38:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:26,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 09:38:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:26,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:26,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904827989] [2020-10-28 09:38:26,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:26,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 09:38:26,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916286199] [2020-10-28 09:38:26,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 09:38:26,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:26,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 09:38:26,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 09:38:26,196 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand 6 states. [2020-10-28 09:38:26,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:26,619 INFO L93 Difference]: Finished difference Result 180 states and 252 transitions. [2020-10-28 09:38:26,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 09:38:26,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-10-28 09:38:26,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:26,622 INFO L225 Difference]: With dead ends: 180 [2020-10-28 09:38:26,623 INFO L226 Difference]: Without dead ends: 108 [2020-10-28 09:38:26,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-28 09:38:26,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-28 09:38:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2020-10-28 09:38:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-28 09:38:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 131 transitions. [2020-10-28 09:38:26,642 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 131 transitions. Word has length 60 [2020-10-28 09:38:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:26,643 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 131 transitions. [2020-10-28 09:38:26,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 09:38:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2020-10-28 09:38:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 09:38:26,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:26,644 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:26,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 09:38:26,645 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -839095551, now seen corresponding path program 1 times [2020-10-28 09:38:26,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:26,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29114748] [2020-10-28 09:38:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:26,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:26,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 09:38:31,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:38:31,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 09:38:31,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:38:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 09:38:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 09:38:31,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:31,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:31,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:31,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:38:31,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:31,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:31,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 09:38:31,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 09:38:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:31,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:31,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:31,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 09:38:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 09:38:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:31,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:31,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:31,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:31,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 09:38:31,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:31,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:38:31,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 09:38:31,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29114748] [2020-10-28 09:38:31,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:31,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 09:38:31,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364761513] [2020-10-28 09:38:31,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 09:38:31,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:31,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 09:38:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-28 09:38:31,931 INFO L87 Difference]: Start difference. First operand 98 states and 131 transitions. Second operand 10 states. [2020-10-28 09:38:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:33,130 INFO L93 Difference]: Finished difference Result 131 states and 181 transitions. [2020-10-28 09:38:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 09:38:33,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-28 09:38:33,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:33,132 INFO L225 Difference]: With dead ends: 131 [2020-10-28 09:38:33,133 INFO L226 Difference]: Without dead ends: 120 [2020-10-28 09:38:33,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2020-10-28 09:38:33,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-28 09:38:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2020-10-28 09:38:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-28 09:38:33,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2020-10-28 09:38:33,173 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 62 [2020-10-28 09:38:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:33,173 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2020-10-28 09:38:33,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 09:38:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2020-10-28 09:38:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 09:38:33,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:33,175 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:33,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 09:38:33,175 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:33,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2118959229, now seen corresponding path program 1 times [2020-10-28 09:38:33,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:33,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245146354] [2020-10-28 09:38:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 09:38:33,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-28 09:38:33,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 09:38:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:33,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:33,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:33,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:33,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 09:38:33,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 09:38:33,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:33,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:33,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 09:38:33,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 09:38:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:33,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 09:38:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:33,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:33,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 09:38:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:33,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:33,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:33,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:33,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:33,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:33,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:33,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:33,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:33,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:33,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:33,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:33,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245146354] [2020-10-28 09:38:33,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:33,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 09:38:33,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615681351] [2020-10-28 09:38:33,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:38:33,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:33,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:38:33,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:38:33,878 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand 7 states. [2020-10-28 09:38:34,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:34,597 INFO L93 Difference]: Finished difference Result 214 states and 305 transitions. [2020-10-28 09:38:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 09:38:34,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-28 09:38:34,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:34,599 INFO L225 Difference]: With dead ends: 214 [2020-10-28 09:38:34,599 INFO L226 Difference]: Without dead ends: 135 [2020-10-28 09:38:34,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-28 09:38:34,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-28 09:38:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 104. [2020-10-28 09:38:34,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-28 09:38:34,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2020-10-28 09:38:34,639 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 62 [2020-10-28 09:38:34,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:34,639 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2020-10-28 09:38:34,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:38:34,639 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2020-10-28 09:38:34,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 09:38:34,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:34,645 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:34,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 09:38:34,646 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:34,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:34,647 INFO L82 PathProgramCache]: Analyzing trace with hash -173068847, now seen corresponding path program 1 times [2020-10-28 09:38:34,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:34,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936879383] [2020-10-28 09:38:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:34,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:34,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 09:38:35,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:35,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-28 09:38:35,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 09:38:35,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:35,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:35,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:35,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:35,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 09:38:35,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 09:38:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:35,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:35,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:35,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:35,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:35,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:35,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 09:38:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:35,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 09:38:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:35,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936879383] [2020-10-28 09:38:35,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:35,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 09:38:35,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767412241] [2020-10-28 09:38:35,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:38:35,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:35,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:38:35,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:38:35,203 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand 7 states. [2020-10-28 09:38:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:35,740 INFO L93 Difference]: Finished difference Result 204 states and 288 transitions. [2020-10-28 09:38:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 09:38:35,740 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-28 09:38:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:35,744 INFO L225 Difference]: With dead ends: 204 [2020-10-28 09:38:35,744 INFO L226 Difference]: Without dead ends: 125 [2020-10-28 09:38:35,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-28 09:38:35,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-28 09:38:35,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 108. [2020-10-28 09:38:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-28 09:38:35,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 144 transitions. [2020-10-28 09:38:35,778 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 144 transitions. Word has length 63 [2020-10-28 09:38:35,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:35,780 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 144 transitions. [2020-10-28 09:38:35,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:38:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 144 transitions. [2020-10-28 09:38:35,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 09:38:35,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:35,781 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:35,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 09:38:35,781 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:35,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:35,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1012698834, now seen corresponding path program 2 times [2020-10-28 09:38:35,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:35,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509622766] [2020-10-28 09:38:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 09:38:36,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:36,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-28 09:38:36,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 09:38:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:36,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 09:38:36,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:36,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:36,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:36,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:36,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:36,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:36,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:36,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:36,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 09:38:36,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:36,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 09:38:36,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 09:38:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 09:38:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 09:38:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:36,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:36,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 09:38:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:36,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:38:36,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:38:36,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 09:38:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:36,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:36,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:36,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:36,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509622766] [2020-10-28 09:38:36,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:36,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 09:38:36,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301932303] [2020-10-28 09:38:36,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 09:38:36,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:36,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 09:38:36,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:38:36,543 INFO L87 Difference]: Start difference. First operand 108 states and 144 transitions. Second operand 8 states. [2020-10-28 09:38:37,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:37,103 INFO L93 Difference]: Finished difference Result 210 states and 302 transitions. [2020-10-28 09:38:37,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 09:38:37,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-28 09:38:37,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:37,106 INFO L225 Difference]: With dead ends: 210 [2020-10-28 09:38:37,106 INFO L226 Difference]: Without dead ends: 134 [2020-10-28 09:38:37,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-28 09:38:37,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-28 09:38:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 109. [2020-10-28 09:38:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-28 09:38:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 146 transitions. [2020-10-28 09:38:37,128 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 146 transitions. Word has length 65 [2020-10-28 09:38:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:37,130 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 146 transitions. [2020-10-28 09:38:37,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 09:38:37,130 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 146 transitions. [2020-10-28 09:38:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 09:38:37,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:37,132 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:37,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 09:38:37,132 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:37,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:37,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1875916702, now seen corresponding path program 2 times [2020-10-28 09:38:37,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:37,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961168162] [2020-10-28 09:38:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 09:38:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 09:38:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:37,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:37,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:37,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:37,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:37,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:37,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 09:38:37,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 09:38:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 09:38:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:37,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 09:38:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:37,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:37,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:37,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:37,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:37,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:37,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 09:38:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:37,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:37,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:37,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:37,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:37,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961168162] [2020-10-28 09:38:37,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:37,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 09:38:37,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875826377] [2020-10-28 09:38:37,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 09:38:37,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:37,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 09:38:37,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:38:37,774 INFO L87 Difference]: Start difference. First operand 109 states and 146 transitions. Second operand 8 states. [2020-10-28 09:38:38,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:38,387 INFO L93 Difference]: Finished difference Result 224 states and 318 transitions. [2020-10-28 09:38:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 09:38:38,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-28 09:38:38,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:38,390 INFO L225 Difference]: With dead ends: 224 [2020-10-28 09:38:38,390 INFO L226 Difference]: Without dead ends: 142 [2020-10-28 09:38:38,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2020-10-28 09:38:38,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-28 09:38:38,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 114. [2020-10-28 09:38:38,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-28 09:38:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 153 transitions. [2020-10-28 09:38:38,417 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 153 transitions. Word has length 66 [2020-10-28 09:38:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:38,417 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 153 transitions. [2020-10-28 09:38:38,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 09:38:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 153 transitions. [2020-10-28 09:38:38,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 09:38:38,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:38,419 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:38,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 09:38:38,419 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:38,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:38,420 INFO L82 PathProgramCache]: Analyzing trace with hash 958449955, now seen corresponding path program 3 times [2020-10-28 09:38:38,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:38,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229759151] [2020-10-28 09:38:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:38,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 616 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 09:38:39,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:39,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:39,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:39,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:39,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:39,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:39,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 09:38:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 09:38:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 09:38:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:39,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:39,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:39,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:39,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:39,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 09:38:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:39,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:39,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:39,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:39,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:39,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 09:38:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:39,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:39,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:39,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:39,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:39,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:39,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:39,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:39,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229759151] [2020-10-28 09:38:39,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:39,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 09:38:39,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780899138] [2020-10-28 09:38:39,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 09:38:39,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:39,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 09:38:39,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-28 09:38:39,307 INFO L87 Difference]: Start difference. First operand 114 states and 153 transitions. Second operand 9 states. [2020-10-28 09:38:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:40,562 INFO L93 Difference]: Finished difference Result 241 states and 347 transitions. [2020-10-28 09:38:40,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 09:38:40,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-28 09:38:40,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:40,570 INFO L225 Difference]: With dead ends: 241 [2020-10-28 09:38:40,570 INFO L226 Difference]: Without dead ends: 155 [2020-10-28 09:38:40,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-28 09:38:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-28 09:38:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 116. [2020-10-28 09:38:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-28 09:38:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 155 transitions. [2020-10-28 09:38:40,592 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 155 transitions. Word has length 68 [2020-10-28 09:38:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:40,593 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 155 transitions. [2020-10-28 09:38:40,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 09:38:40,593 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 155 transitions. [2020-10-28 09:38:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 09:38:40,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:40,594 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:40,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 09:38:40,595 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:40,595 INFO L82 PathProgramCache]: Analyzing trace with hash 737335345, now seen corresponding path program 3 times [2020-10-28 09:38:40,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:40,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031224036] [2020-10-28 09:38:40,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 09:38:41,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-10-28 09:38:41,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 09:38:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 09:38:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:41,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:41,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:41,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:41,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:41,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:41,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:41,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:41,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:41,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:41,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:41,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:41,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:41,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 09:38:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 09:38:41,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 09:38:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 09:38:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:41,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:41,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:41,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:41,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:41,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:41,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 09:38:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:41,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:41,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:41,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:41,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 09:38:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:41,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:41,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:41,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:41,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:41,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031224036] [2020-10-28 09:38:41,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:41,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 09:38:41,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75616881] [2020-10-28 09:38:41,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 09:38:41,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:41,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 09:38:41,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-28 09:38:41,451 INFO L87 Difference]: Start difference. First operand 116 states and 155 transitions. Second operand 9 states. [2020-10-28 09:38:42,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:42,107 INFO L93 Difference]: Finished difference Result 233 states and 333 transitions. [2020-10-28 09:38:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 09:38:42,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-28 09:38:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:42,112 INFO L225 Difference]: With dead ends: 233 [2020-10-28 09:38:42,112 INFO L226 Difference]: Without dead ends: 148 [2020-10-28 09:38:42,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2020-10-28 09:38:42,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-28 09:38:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 120. [2020-10-28 09:38:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-28 09:38:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2020-10-28 09:38:42,139 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 69 [2020-10-28 09:38:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:42,140 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2020-10-28 09:38:42,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 09:38:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2020-10-28 09:38:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 09:38:42,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:42,141 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:42,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 09:38:42,142 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:42,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:42,142 INFO L82 PathProgramCache]: Analyzing trace with hash -262201038, now seen corresponding path program 4 times [2020-10-28 09:38:42,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:42,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363295980] [2020-10-28 09:38:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:42,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:42,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:42,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:42,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 09:38:42,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:42,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-10-28 09:38:42,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:42,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:38:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:42,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 09:38:42,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:42,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:42,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:42,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:42,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:42,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:42,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:42,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:42,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:42,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:42,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:42,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:42,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:42,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:42,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:42,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:42,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:42,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:42,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:43,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:43,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 09:38:43,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:43,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 09:38:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 09:38:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:43,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:43,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:43,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:43,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:43,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:43,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:43,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:43,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 09:38:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:43,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:43,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:43,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:43,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:43,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:38:43,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:43,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:43,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:43,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:43,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:43,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:43,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363295980] [2020-10-28 09:38:43,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:43,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 09:38:43,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884070277] [2020-10-28 09:38:43,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 09:38:43,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:43,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 09:38:43,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-28 09:38:43,203 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand 10 states. [2020-10-28 09:38:44,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:44,538 INFO L93 Difference]: Finished difference Result 253 states and 365 transitions. [2020-10-28 09:38:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 09:38:44,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-28 09:38:44,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:44,543 INFO L225 Difference]: With dead ends: 253 [2020-10-28 09:38:44,543 INFO L226 Difference]: Without dead ends: 165 [2020-10-28 09:38:44,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2020-10-28 09:38:44,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-28 09:38:44,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 122. [2020-10-28 09:38:44,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-28 09:38:44,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 163 transitions. [2020-10-28 09:38:44,577 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 163 transitions. Word has length 71 [2020-10-28 09:38:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:44,577 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 163 transitions. [2020-10-28 09:38:44,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 09:38:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 163 transitions. [2020-10-28 09:38:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 09:38:44,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:44,579 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:44,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 09:38:44,580 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:44,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:44,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1551860226, now seen corresponding path program 4 times [2020-10-28 09:38:44,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:44,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506789817] [2020-10-28 09:38:44,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:44,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:44,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 09:38:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:45,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:45,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:45,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:45,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:45,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 09:38:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 09:38:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:45,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 09:38:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:45,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:45,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:45,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 09:38:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:45,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:45,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:45,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 09:38:45,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506789817] [2020-10-28 09:38:45,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:45,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 09:38:45,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459109203] [2020-10-28 09:38:45,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 09:38:45,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:45,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 09:38:45,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-10-28 09:38:45,319 INFO L87 Difference]: Start difference. First operand 122 states and 163 transitions. Second operand 10 states. [2020-10-28 09:38:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:45,915 INFO L93 Difference]: Finished difference Result 246 states and 353 transitions. [2020-10-28 09:38:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 09:38:45,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-28 09:38:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:45,917 INFO L225 Difference]: With dead ends: 246 [2020-10-28 09:38:45,918 INFO L226 Difference]: Without dead ends: 158 [2020-10-28 09:38:45,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=184, Unknown=0, NotChecked=0, Total=306 [2020-10-28 09:38:45,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-28 09:38:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-10-28 09:38:45,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-28 09:38:45,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 168 transitions. [2020-10-28 09:38:45,942 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 168 transitions. Word has length 72 [2020-10-28 09:38:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:45,942 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 168 transitions. [2020-10-28 09:38:45,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 09:38:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 168 transitions. [2020-10-28 09:38:45,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-28 09:38:45,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:45,946 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:45,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 09:38:45,946 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:45,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:45,946 INFO L82 PathProgramCache]: Analyzing trace with hash 812161731, now seen corresponding path program 5 times [2020-10-28 09:38:45,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:45,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836472934] [2020-10-28 09:38:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:45,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:45,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 747 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:46,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:46,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:46,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 09:38:46,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:46,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:38:46,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:46,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:46,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:46,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 09:38:46,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:46,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:46,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:46,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:38:46,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:46,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 09:38:46,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:46,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 09:38:46,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:46,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:46,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 09:38:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:46,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:46,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:46,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 09:38:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:46,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:38:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 09:38:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:47,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-28 09:38:47,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836472934] [2020-10-28 09:38:47,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:38:47,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 09:38:47,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217936964] [2020-10-28 09:38:47,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:38:47,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:47,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:38:47,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:38:47,016 INFO L87 Difference]: Start difference. First operand 126 states and 168 transitions. Second operand 7 states. [2020-10-28 09:38:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:48,084 INFO L93 Difference]: Finished difference Result 133 states and 174 transitions. [2020-10-28 09:38:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 09:38:48,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-28 09:38:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:48,086 INFO L225 Difference]: With dead ends: 133 [2020-10-28 09:38:48,086 INFO L226 Difference]: Without dead ends: 126 [2020-10-28 09:38:48,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-28 09:38:48,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-28 09:38:48,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-28 09:38:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-28 09:38:48,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 167 transitions. [2020-10-28 09:38:48,110 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 167 transitions. Word has length 74 [2020-10-28 09:38:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:48,110 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 167 transitions. [2020-10-28 09:38:48,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:38:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 167 transitions. [2020-10-28 09:38:48,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-28 09:38:48,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:48,112 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:38:48,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 09:38:48,112 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:48,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:48,113 INFO L82 PathProgramCache]: Analyzing trace with hash -962845631, now seen corresponding path program 1 times [2020-10-28 09:38:48,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:48,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709525729] [2020-10-28 09:38:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:48,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:48,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 09:38:49,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:49,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:49,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:49,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 09:38:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 09:38:49,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:49,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 09:38:49,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:49,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:49,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 09:38:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 09:38:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:49,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:49,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 09:38:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:49,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:49,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:38:49,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:49,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 09:38:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 09:38:49,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-28 09:38:49,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709525729] [2020-10-28 09:38:49,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:38:49,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 09:38:49,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965888786] [2020-10-28 09:38:49,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 09:38:49,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:49,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 09:38:49,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:38:49,237 INFO L87 Difference]: Start difference. First operand 126 states and 167 transitions. Second operand 7 states. [2020-10-28 09:38:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:49,721 INFO L93 Difference]: Finished difference Result 141 states and 182 transitions. [2020-10-28 09:38:49,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 09:38:49,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-28 09:38:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:49,723 INFO L225 Difference]: With dead ends: 141 [2020-10-28 09:38:49,723 INFO L226 Difference]: Without dead ends: 116 [2020-10-28 09:38:49,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-28 09:38:49,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-28 09:38:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2020-10-28 09:38:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 09:38:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 135 transitions. [2020-10-28 09:38:49,742 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 135 transitions. Word has length 74 [2020-10-28 09:38:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:49,742 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 135 transitions. [2020-10-28 09:38:49,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 09:38:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 135 transitions. [2020-10-28 09:38:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-28 09:38:49,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:38:49,750 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2020-10-28 09:38:49,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 09:38:49,750 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:38:49,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:38:49,751 INFO L82 PathProgramCache]: Analyzing trace with hash 401338706, now seen corresponding path program 1 times [2020-10-28 09:38:49,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:38:49,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783474409] [2020-10-28 09:38:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:38:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:49,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:49,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:50,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 09:38:54,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 09:38:54,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:54,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:38:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:54,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:54,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:54,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:38:54,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:38:54,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:54,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:38:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:54,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 09:38:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:54,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:54,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:54,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:54,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 09:38:54,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 09:38:54,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:54,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:38:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 09:38:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 09:38:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:54,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 09:38:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:54,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:54,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:55,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:55,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:55,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 09:38:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:55,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:55,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:55,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:55,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-28 09:38:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:55,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 09:38:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:55,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:55,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 09:38:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:38:55,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:38:55,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 09:38:55,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:38:55,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:38:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-28 09:38:55,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783474409] [2020-10-28 09:38:55,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 09:38:55,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 09:38:55,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756445410] [2020-10-28 09:38:55,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:38:55,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:38:55,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:38:55,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:38:55,037 INFO L87 Difference]: Start difference. First operand 106 states and 135 transitions. Second operand 5 states. [2020-10-28 09:38:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:38:55,176 INFO L93 Difference]: Finished difference Result 109 states and 137 transitions. [2020-10-28 09:38:55,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:38:55,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-28 09:38:55,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:38:55,177 INFO L225 Difference]: With dead ends: 109 [2020-10-28 09:38:55,177 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 09:38:55,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 09:38:55,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 09:38:55,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 09:38:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 09:38:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 09:38:55,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2020-10-28 09:38:55,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:38:55,179 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 09:38:55,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:38:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 09:38:55,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 09:38:55,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 09:38:55,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 09:38:55,984 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 33 [2020-10-28 09:38:56,270 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 105 [2020-10-28 09:38:56,865 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 157 [2020-10-28 09:38:56,978 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2020-10-28 09:38:57,642 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 170 [2020-10-28 09:38:57,750 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 95 [2020-10-28 09:38:58,019 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 141 [2020-10-28 09:38:59,171 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 34 [2020-10-28 09:38:59,676 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 171 [2020-10-28 09:39:00,199 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 222 [2020-10-28 09:39:00,998 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 196 [2020-10-28 09:39:01,240 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 136 [2020-10-28 09:39:02,544 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 275 DAG size of output: 208 [2020-10-28 09:39:02,895 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 155 [2020-10-28 09:39:03,528 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 180 [2020-10-28 09:39:03,784 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 33 [2020-10-28 09:39:03,972 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 33 [2020-10-28 09:39:04,397 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 126 [2020-10-28 09:39:05,871 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 32 [2020-10-28 09:39:06,392 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 23 [2020-10-28 09:39:06,665 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 09:39:06,666 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 09:39:06,666 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 09:39:06,666 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 09:39:06,666 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point mulfltEXIT(lines 139 211) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point L186(lines 186 203) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point L186-2(lines 186 203) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point L195(lines 195 200) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point mulfltFINAL(lines 139 211) no Hoare annotation was computed. [2020-10-28 09:39:06,667 INFO L274 CegarLoopResult]: For program point L187(lines 187 192) no Hoare annotation was computed. [2020-10-28 09:39:06,668 INFO L277 CegarLoopResult]: At program point mulfltENTRY(lines 139 211) the Hoare annotation is: true [2020-10-28 09:39:06,668 INFO L274 CegarLoopResult]: For program point L150(lines 150 156) no Hoare annotation was computed. [2020-10-28 09:39:06,668 INFO L274 CegarLoopResult]: For program point L150-2(lines 149 210) no Hoare annotation was computed. [2020-10-28 09:39:06,668 INFO L274 CegarLoopResult]: For program point L177(lines 177 182) no Hoare annotation was computed. [2020-10-28 09:39:06,668 INFO L270 CegarLoopResult]: At program point L208(lines 149 210) the Hoare annotation is: (or (and (= 0 mulflt_~__retres10~1) (= mulflt_~b |mulflt_#in~b|)) (<= |mulflt_#in~b| (+ (* 4294967296 (div (+ |mulflt_#in~b| (- 1)) 4294967296)) 4294967295))) [2020-10-28 09:39:06,668 INFO L274 CegarLoopResult]: For program point L171(lines 171 176) no Hoare annotation was computed. [2020-10-28 09:39:06,668 INFO L274 CegarLoopResult]: For program point L27(lines 27 67) no Hoare annotation was computed. [2020-10-28 09:39:06,668 INFO L270 CegarLoopResult]: At program point L65(lines 27 67) the Hoare annotation is: (not (= |base2flt_#in~m| 0)) [2020-10-28 09:39:06,669 INFO L270 CegarLoopResult]: At program point L49-2(lines 49 64) the Hoare annotation is: (let ((.cse0 (+ (div base2flt_~m 4294967296) 1))) (and (or (<= 16777216 |base2flt_#in~m|) (<= (+ |base2flt_#in~m| 1) 0)) (or (<= base2flt_~m |base2flt_#in~m|) (<= .cse0 0)) (<= |base2flt_#in~e| base2flt_~e) (or (< 0 .cse0) (<= |base2flt_#in~m| base2flt_~m)))) [2020-10-28 09:39:06,669 INFO L277 CegarLoopResult]: At program point base2fltENTRY(lines 16 74) the Hoare annotation is: true [2020-10-28 09:39:06,669 INFO L274 CegarLoopResult]: For program point L21(lines 21 26) no Hoare annotation was computed. [2020-10-28 09:39:06,669 INFO L274 CegarLoopResult]: For program point L50(lines 49 64) no Hoare annotation was computed. [2020-10-28 09:39:06,670 INFO L270 CegarLoopResult]: At program point L71(lines 20 73) the Hoare annotation is: (or (and (= base2flt_~m 0) (or (not (= |base2flt_#in~e| 0)) (<= 0 (+ base2flt_~e 3)))) (not (<= |base2flt_#in~m| 0)) (<= (+ |base2flt_#in~m| 1) 0) (and (<= 0 base2flt_~__retres4~0) (<= base2flt_~__retres4~0 0)) (and (<= (div base2flt_~m 4294967296) 0) (<= |base2flt_#in~e| base2flt_~e) (<= |base2flt_#in~m| base2flt_~m) (<= (+ |base2flt_#in~e| 128) 0))) [2020-10-28 09:39:06,670 INFO L274 CegarLoopResult]: For program point base2fltFINAL(lines 16 74) no Hoare annotation was computed. [2020-10-28 09:39:06,670 INFO L274 CegarLoopResult]: For program point L30(lines 29 44) no Hoare annotation was computed. [2020-10-28 09:39:06,670 INFO L274 CegarLoopResult]: For program point base2fltEXIT(lines 16 74) no Hoare annotation was computed. [2020-10-28 09:39:06,670 INFO L274 CegarLoopResult]: For program point L51(lines 49 64) no Hoare annotation was computed. [2020-10-28 09:39:06,670 INFO L274 CegarLoopResult]: For program point L39(lines 39 43) no Hoare annotation was computed. [2020-10-28 09:39:06,670 INFO L270 CegarLoopResult]: At program point L39-1(lines 29 44) the Hoare annotation is: (not (= |base2flt_#in~m| 0)) [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 09:39:06,671 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point L252(lines 252 256) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point L252-2(lines 252 256) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 212 268) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point L248(lines 248 264) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point L248-1(lines 248 264) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point L246(line 246) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point L238(lines 238 242) no Hoare annotation was computed. [2020-10-28 09:39:06,671 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 212 268) no Hoare annotation was computed. [2020-10-28 09:39:06,672 INFO L274 CegarLoopResult]: For program point L238-2(lines 238 242) no Hoare annotation was computed. [2020-10-28 09:39:06,672 INFO L270 CegarLoopResult]: At program point L232(line 232) the Hoare annotation is: (and (<= 0 main_~zero~0) (<= main_~zero~0 0)) [2020-10-28 09:39:06,672 INFO L274 CegarLoopResult]: For program point L232-1(line 232) no Hoare annotation was computed. [2020-10-28 09:39:06,672 INFO L277 CegarLoopResult]: At program point L230(line 230) the Hoare annotation is: true [2020-10-28 09:39:06,672 INFO L274 CegarLoopResult]: For program point L230-1(line 230) no Hoare annotation was computed. [2020-10-28 09:39:06,672 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 212 268) the Hoare annotation is: true [2020-10-28 09:39:06,672 INFO L274 CegarLoopResult]: For program point L249(lines 249 258) no Hoare annotation was computed. [2020-10-28 09:39:06,672 INFO L270 CegarLoopResult]: At program point L249-2(lines 249 258) the Hoare annotation is: (and (<= main_~tmp___0~0 0) (<= 0 main_~tmp___0~0) (<= main_~tmp___1~0 0) (<= 0 main_~tmp___1~0)) [2020-10-28 09:39:06,672 INFO L274 CegarLoopResult]: For program point L235(lines 235 244) no Hoare annotation was computed. [2020-10-28 09:39:06,672 INFO L270 CegarLoopResult]: At program point L233(line 233) the Hoare annotation is: (and (<= 0 main_~zero~0) (<= main_~zero~0 0)) [2020-10-28 09:39:06,672 INFO L270 CegarLoopResult]: At program point L235-2(lines 235 244) the Hoare annotation is: (or (and (let ((.cse0 (div main_~b~0 4294967296))) (<= (+ (* 4294967296 (div (+ (* .cse0 4294967296) (* main_~b~0 (- 1)) 4294967295) 4294967296)) main_~b~0) (* 4294967296 .cse0))) (<= 0 main_~zero~0) (<= main_~zero~0 0)) (<= (+ main_~sb~0 1) 0) (and (<= 1 main_~sb~0) (<= 1 main_~tmp~2))) [2020-10-28 09:39:06,672 INFO L274 CegarLoopResult]: For program point L233-1(line 233) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L270 CegarLoopResult]: At program point L231(line 231) the Hoare annotation is: (and (<= 0 main_~zero~0) (<= main_~zero~0 0)) [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point L231-1(line 231) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 7 12) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L270 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point L8-2(lines 7 12) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point addfltENTRY(lines 75 138) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point addfltFINAL(lines 75 138) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point L118(lines 118 123) no Hoare annotation was computed. [2020-10-28 09:39:06,673 INFO L274 CegarLoopResult]: For program point L110(lines 110 115) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L106-1(line 106) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L135(lines 85 137) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point addfltEXIT(lines 75 138) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L117(lines 117 128) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L86-2(lines 85 137) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L117-2(lines 117 128) no Hoare annotation was computed. [2020-10-28 09:39:06,674 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-28 09:39:06,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:39:06 BoogieIcfgContainer [2020-10-28 09:39:06,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:39:06,697 INFO L168 Benchmark]: Toolchain (without parser) took 87738.28 ms. Allocated memory was 163.6 MB in the beginning and 714.1 MB in the end (delta: 550.5 MB). Free memory was 137.7 MB in the beginning and 268.0 MB in the end (delta: -130.2 MB). Peak memory consumption was 429.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:39:06,697 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 163.6 MB. Free memory is still 136.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:39:06,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.66 ms. Allocated memory is still 163.6 MB. Free memory was 137.2 MB in the beginning and 124.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-28 09:39:06,698 INFO L168 Benchmark]: Boogie Preprocessor took 51.82 ms. Allocated memory is still 163.6 MB. Free memory was 124.8 MB in the beginning and 123.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:39:06,699 INFO L168 Benchmark]: RCFGBuilder took 748.47 ms. Allocated memory is still 163.6 MB. Free memory was 122.9 MB in the beginning and 133.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-28 09:39:06,699 INFO L168 Benchmark]: TraceAbstraction took 86589.09 ms. Allocated memory was 163.6 MB in the beginning and 714.1 MB in the end (delta: 550.5 MB). Free memory was 132.9 MB in the beginning and 268.0 MB in the end (delta: -135.1 MB). Peak memory consumption was 423.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:39:06,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 163.6 MB. Free memory is still 136.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 334.66 ms. Allocated memory is still 163.6 MB. Free memory was 137.2 MB in the beginning and 124.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.82 ms. Allocated memory is still 163.6 MB. Free memory was 124.8 MB in the beginning and 123.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 748.47 ms. Allocated memory is still 163.6 MB. Free memory was 122.9 MB in the beginning and 133.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 86589.09 ms. Allocated memory was 163.6 MB in the beginning and 714.1 MB in the end (delta: 550.5 MB). Free memory was 132.9 MB in the beginning and 268.0 MB in the end (delta: -135.1 MB). Peak memory consumption was 423.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((16777216 <= \old(m) || \old(m) + 1 <= 0) && (m <= \old(m) || m / 4294967296 + 1 <= 0)) && \old(e) <= e) && (0 < m / 4294967296 + 1 || \old(m) <= m) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: !(\old(m) == 0) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: !(\old(m) == 0) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (0 == __retres10 && b == \old(b)) || \old(b) <= 4294967296 * ((\old(b) + -1) / 4294967296) + 4294967295 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((m == 0 && (!(\old(e) == 0) || 0 <= e + 3)) || !(\old(m) <= 0)) || \old(m) + 1 <= 0) || (0 <= __retres4 && __retres4 <= 0)) || (((m / 4294967296 <= 0 && \old(e) <= e) && \old(m) <= m) && \old(e) + 128 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.0s, OverallIterations: 20, TraceHistogramMax: 12, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1240 SDtfs, 1942 SDslu, 626 SDs, 0 SdLazy, 5185 SolverSat, 356 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 341 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 461 PreInvPairs, 1458 NumberOfFragments, 229 HoareAnnotationTreeSize, 461 FomulaSimplifications, 758924839874 FormulaSimplificationTreeSizeReduction, 9.6s HoareSimplificationTime, 20 FomulaSimplificationsInter, 34826270 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 58.5s InterpolantComputationTime, 1279 NumberOfCodeBlocks, 1279 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1259 ConstructedInterpolants, 0 QuantifiedInterpolants, 232436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 649/1043 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...