/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:38:41,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:38:41,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:38:41,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:38:41,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:38:41,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:38:41,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:38:41,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:38:41,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:38:41,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:38:41,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:38:41,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:38:41,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:38:41,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:38:41,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:38:41,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:38:41,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:38:41,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:38:41,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:38:41,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:38:41,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:38:41,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:38:41,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:38:41,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:38:41,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:38:41,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:38:41,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:38:41,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:38:41,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:38:41,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:38:41,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:38:41,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:38:41,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:38:41,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:38:41,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:38:41,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:38:41,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:38:41,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:38:41,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:38:41,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:38:41,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:38:41,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:38:41,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:38:41,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:38:41,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:38:41,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:38:41,378 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:38:41,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:38:41,378 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:38:41,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:38:41,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:38:41,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:38:41,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:38:41,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:38:41,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:38:41,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:38:41,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:38:41,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:38:41,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:38:41,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:38:41,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:38:41,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:38:41,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:38:41,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:38:41,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:38:41,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:38:41,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:38:41,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:38:41,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:38:41,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:38:41,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:38:41,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:38:41,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:38:41,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:38:41,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:38:41,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:38:41,902 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:38:41,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label49.c [2020-10-29 08:38:41,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54aa843db/9d9bfdb495434d59aa3dd50abb3a0a64/FLAG403778d77 [2020-10-29 08:38:42,973 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:38:42,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label49.c [2020-10-29 08:38:43,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54aa843db/9d9bfdb495434d59aa3dd50abb3a0a64/FLAG403778d77 [2020-10-29 08:38:43,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54aa843db/9d9bfdb495434d59aa3dd50abb3a0a64 [2020-10-29 08:38:43,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:38:43,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:38:43,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:38:43,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:38:43,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:38:43,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:38:43" (1/1) ... [2020-10-29 08:38:43,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447682be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:43, skipping insertion in model container [2020-10-29 08:38:43,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:38:43" (1/1) ... [2020-10-29 08:38:43,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:38:43,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:38:44,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:38:44,322 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:38:44,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:38:44,955 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:38:44,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44 WrapperNode [2020-10-29 08:38:44,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:38:44,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:38:44,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:38:44,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:38:44,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:44,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:45,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:45,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:45,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:45,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:45,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... [2020-10-29 08:38:45,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:38:45,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:38:45,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:38:45,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:38:45,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:38:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:38:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:38:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:38:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:38:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:38:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:38:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:38:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:38:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:38:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:38:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:38:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:38:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:38:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:38:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:38:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:38:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:38:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:38:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:38:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:38:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:38:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:38:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:38:49,761 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:38:49,761 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:38:49,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:38:49 BoogieIcfgContainer [2020-10-29 08:38:49,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:38:49,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:38:49,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:38:49,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:38:49,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:38:43" (1/3) ... [2020-10-29 08:38:49,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49347749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:38:49, skipping insertion in model container [2020-10-29 08:38:49,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:38:44" (2/3) ... [2020-10-29 08:38:49,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49347749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:38:49, skipping insertion in model container [2020-10-29 08:38:49,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:38:49" (3/3) ... [2020-10-29 08:38:49,776 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label49.c [2020-10-29 08:38:49,788 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:38:49,794 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:38:49,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:38:49,843 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:38:49,843 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:38:49,844 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:38:49,844 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:38:49,844 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:38:49,844 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:38:49,844 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:38:49,844 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:38:49,879 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:38:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 08:38:49,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:38:49,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:38:49,888 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:38:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:38:49,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1405617776, now seen corresponding path program 1 times [2020-10-29 08:38:49,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:38:49,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109892052] [2020-10-29 08:38:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:38:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:50,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:50,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 08:38:50,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-29 08:38:50,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:50,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:38:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:38:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 08:38:50,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 08:38:50,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:38:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:38:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:38:50,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:38:50,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:38:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:38:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:38:50,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:38:50,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:38:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:38:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:38:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:38:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:38:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:38:50,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109892052] [2020-10-29 08:38:50,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:38:50,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:38:50,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512465314] [2020-10-29 08:38:50,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:38:50,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:38:50,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:38:50,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:38:50,996 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-29 08:39:00,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:00,644 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-29 08:39:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:39:00,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-29 08:39:00,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:00,690 INFO L225 Difference]: With dead ends: 2275 [2020-10-29 08:39:00,691 INFO L226 Difference]: Without dead ends: 1433 [2020-10-29 08:39:00,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:39:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-29 08:39:00,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-29 08:39:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-29 08:39:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2020-10-29 08:39:00,937 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 29 [2020-10-29 08:39:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:00,938 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2020-10-29 08:39:00,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:39:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2020-10-29 08:39:00,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-29 08:39:00,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:00,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:00,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:39:00,948 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:00,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1514842711, now seen corresponding path program 1 times [2020-10-29 08:39:00,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:00,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505752735] [2020-10-29 08:39:00,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:01,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:01,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:02,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:02,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:39:02,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:39:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-10-29 08:39:02,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:02,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:02,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:02,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:02,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:39:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:39:02,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:02,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:02,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:02,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:39:02,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:02,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:02,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:02,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:02,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:02,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:39:02,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:02,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 08:39:02,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:02,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:02,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:02,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:02,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:39:02,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:39:02,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505752735] [2020-10-29 08:39:02,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:39:02,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:39:02,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20318111] [2020-10-29 08:39:02,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:02,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:02,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:02,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:02,482 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand 7 states. [2020-10-29 08:39:13,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:13,684 INFO L93 Difference]: Finished difference Result 4354 states and 6840 transitions. [2020-10-29 08:39:13,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:39:13,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2020-10-29 08:39:13,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:13,706 INFO L225 Difference]: With dead ends: 4354 [2020-10-29 08:39:13,706 INFO L226 Difference]: Without dead ends: 2934 [2020-10-29 08:39:13,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:39:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2020-10-29 08:39:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2879. [2020-10-29 08:39:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2879 states. [2020-10-29 08:39:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 3877 transitions. [2020-10-29 08:39:13,859 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 3877 transitions. Word has length 99 [2020-10-29 08:39:13,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:13,859 INFO L481 AbstractCegarLoop]: Abstraction has 2879 states and 3877 transitions. [2020-10-29 08:39:13,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:13,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 3877 transitions. [2020-10-29 08:39:13,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 08:39:13,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:13,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:13,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:39:13,862 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:13,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1235698991, now seen corresponding path program 1 times [2020-10-29 08:39:13,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:13,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404488510] [2020-10-29 08:39:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:14,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:14,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 08:39:14,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:39:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-29 08:39:14,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:14,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:39:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:14,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:14,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:14,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:14,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:39:14,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:14,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:14,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:14,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:14,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:14,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:14,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:15,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:15,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:39:15,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:15,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 08:39:15,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:15,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:39:15,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:39:15,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404488510] [2020-10-29 08:39:15,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:39:15,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:39:15,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7109077] [2020-10-29 08:39:15,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:15,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:15,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:15,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:15,214 INFO L87 Difference]: Start difference. First operand 2879 states and 3877 transitions. Second operand 7 states. [2020-10-29 08:39:27,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:27,375 INFO L93 Difference]: Finished difference Result 8802 states and 12016 transitions. [2020-10-29 08:39:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:39:27,376 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 119 [2020-10-29 08:39:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:27,412 INFO L225 Difference]: With dead ends: 8802 [2020-10-29 08:39:27,413 INFO L226 Difference]: Without dead ends: 5929 [2020-10-29 08:39:27,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:39:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2020-10-29 08:39:27,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5842. [2020-10-29 08:39:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5842 states. [2020-10-29 08:39:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 7282 transitions. [2020-10-29 08:39:27,593 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 7282 transitions. Word has length 119 [2020-10-29 08:39:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:27,593 INFO L481 AbstractCegarLoop]: Abstraction has 5842 states and 7282 transitions. [2020-10-29 08:39:27,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 7282 transitions. [2020-10-29 08:39:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-29 08:39:27,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:27,600 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:27,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:39:27,600 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:27,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:27,601 INFO L82 PathProgramCache]: Analyzing trace with hash 303343832, now seen corresponding path program 1 times [2020-10-29 08:39:27,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:27,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147580066] [2020-10-29 08:39:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:27,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:28,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:31,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:31,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-29 08:39:31,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:39:31,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3724 [2020-10-29 08:39:31,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:31,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:31,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:39:31,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:39:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:39:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:31,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:31,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:31,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:31,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:31,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:31,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:39:31,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:31,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:31,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:39:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:31,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:31,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:31,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-29 08:39:31,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:31,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:31,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 08:39:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:31,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:31,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:31,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:39:31,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:39:31,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:31,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:39:31,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:31,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:39:32,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147580066] [2020-10-29 08:39:32,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:32,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:32,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101082737] [2020-10-29 08:39:32,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:32,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:32,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:32,123 INFO L87 Difference]: Start difference. First operand 5842 states and 7282 transitions. Second operand 7 states. [2020-10-29 08:39:41,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:39:41,405 INFO L93 Difference]: Finished difference Result 12600 states and 15574 transitions. [2020-10-29 08:39:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:39:41,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2020-10-29 08:39:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:39:41,439 INFO L225 Difference]: With dead ends: 12600 [2020-10-29 08:39:41,439 INFO L226 Difference]: Without dead ends: 6764 [2020-10-29 08:39:41,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:39:41,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6764 states. [2020-10-29 08:39:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6764 to 6623. [2020-10-29 08:39:41,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6623 states. [2020-10-29 08:39:41,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 8088 transitions. [2020-10-29 08:39:41,621 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 8088 transitions. Word has length 224 [2020-10-29 08:39:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:39:41,621 INFO L481 AbstractCegarLoop]: Abstraction has 6623 states and 8088 transitions. [2020-10-29 08:39:41,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:39:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 8088 transitions. [2020-10-29 08:39:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-10-29 08:39:41,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:39:41,629 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:39:41,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:39:41,630 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:39:41,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:39:41,630 INFO L82 PathProgramCache]: Analyzing trace with hash -239250409, now seen corresponding path program 1 times [2020-10-29 08:39:41,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:39:41,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461763625] [2020-10-29 08:39:41,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:39:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:41,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:42,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:43,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:46,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:46,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 426 [2020-10-29 08:39:46,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:39:46,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 08:39:46,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:46,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:39:46,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 08:39:46,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:39:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:39:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:46,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:46,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:46,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:39:46,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:46,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:39:46,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:46,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:46,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:46,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:46,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 08:39:46,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:39:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:47,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:39:47,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 08:39:47,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:47,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:47,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:39:47,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:39:47,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:39:47,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 08:39:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-29 08:39:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:47,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:47,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:47,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:39:47,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:47,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 08:39:47,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:47,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:39:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:39:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:39:47,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:47,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-29 08:39:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:39:47,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:39:47,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:39:47,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:39:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:39:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:39:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 186 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-29 08:39:47,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461763625] [2020-10-29 08:39:47,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:39:47,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:39:47,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893802351] [2020-10-29 08:39:47,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:39:47,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:39:47,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:39:47,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:39:47,930 INFO L87 Difference]: Start difference. First operand 6623 states and 8088 transitions. Second operand 7 states. [2020-10-29 08:40:02,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:02,005 INFO L93 Difference]: Finished difference Result 15691 states and 19895 transitions. [2020-10-29 08:40:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:40:02,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 410 [2020-10-29 08:40:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:02,041 INFO L225 Difference]: With dead ends: 15691 [2020-10-29 08:40:02,042 INFO L226 Difference]: Without dead ends: 8130 [2020-10-29 08:40:02,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:40:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8130 states. [2020-10-29 08:40:02,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8130 to 8029. [2020-10-29 08:40:02,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8029 states. [2020-10-29 08:40:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8029 states to 8029 states and 8810 transitions. [2020-10-29 08:40:02,273 INFO L78 Accepts]: Start accepts. Automaton has 8029 states and 8810 transitions. Word has length 410 [2020-10-29 08:40:02,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:02,273 INFO L481 AbstractCegarLoop]: Abstraction has 8029 states and 8810 transitions. [2020-10-29 08:40:02,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 8029 states and 8810 transitions. [2020-10-29 08:40:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-10-29 08:40:02,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:02,284 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:02,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:40:02,285 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:02,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:02,285 INFO L82 PathProgramCache]: Analyzing trace with hash -36952608, now seen corresponding path program 1 times [2020-10-29 08:40:02,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:02,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509326522] [2020-10-29 08:40:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:02,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:07,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:07,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 442 [2020-10-29 08:40:07,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-29 08:40:07,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:07,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:40:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:40:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-29 08:40:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:07,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:07,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:07,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:07,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:07,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:07,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:40:07,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:07,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:07,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:40:07,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:07,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:08,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:08,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:40:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:08,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:08,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:08,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:40:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:08,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:40:08,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-29 08:40:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:08,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:08,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:08,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:40:08,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:08,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-29 08:40:08,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:08,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:08,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:08,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 08:40:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:08,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 42 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 08:40:09,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509326522] [2020-10-29 08:40:09,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:09,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:40:09,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003617809] [2020-10-29 08:40:09,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:40:09,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:09,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:40:09,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:40:09,338 INFO L87 Difference]: Start difference. First operand 8029 states and 8810 transitions. Second operand 8 states. [2020-10-29 08:40:19,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:19,034 INFO L93 Difference]: Finished difference Result 20675 states and 23259 transitions. [2020-10-29 08:40:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:40:19,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 426 [2020-10-29 08:40:19,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:19,084 INFO L225 Difference]: With dead ends: 20675 [2020-10-29 08:40:19,085 INFO L226 Difference]: Without dead ends: 13354 [2020-10-29 08:40:19,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:40:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13354 states. [2020-10-29 08:40:19,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13354 to 13229. [2020-10-29 08:40:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13229 states. [2020-10-29 08:40:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13229 states to 13229 states and 14488 transitions. [2020-10-29 08:40:19,405 INFO L78 Accepts]: Start accepts. Automaton has 13229 states and 14488 transitions. Word has length 426 [2020-10-29 08:40:19,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:19,406 INFO L481 AbstractCegarLoop]: Abstraction has 13229 states and 14488 transitions. [2020-10-29 08:40:19,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:40:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13229 states and 14488 transitions. [2020-10-29 08:40:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2020-10-29 08:40:19,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:19,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:19,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:40:19,444 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:19,445 INFO L82 PathProgramCache]: Analyzing trace with hash -833701057, now seen corresponding path program 1 times [2020-10-29 08:40:19,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:19,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865662641] [2020-10-29 08:40:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:19,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:24,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:24,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 975 [2020-10-29 08:40:24,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:40:24,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-29 08:40:24,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:24,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:24,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:40:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 08:40:24,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:25,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:25,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:25,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:25,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:25,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:40:25,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:25,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:40:25,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:25,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:25,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:25,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:25,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:25,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 08:40:25,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:25,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:25,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:25,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:25,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:25,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:25,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:25,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:25,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:25,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:25,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 08:40:25,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:25,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:25,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:25,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:25,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:25,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:40:25,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:25,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:25,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:25,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:25,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:25,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:26,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:26,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:26,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:26,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 08:40:26,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:26,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:26,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:26,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:26,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:40:26,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:26,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:26,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:26,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:26,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:40:26,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:26,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:26,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:26,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:26,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:40:26,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:26,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:26,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:26,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:26,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:40:26,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 08:40:26,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:26,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 08:40:26,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-29 08:40:27,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865662641] [2020-10-29 08:40:27,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:27,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:40:27,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012181412] [2020-10-29 08:40:27,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:40:27,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:27,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:40:27,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:40:27,211 INFO L87 Difference]: Start difference. First operand 13229 states and 14488 transitions. Second operand 7 states. [2020-10-29 08:40:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:40:36,936 INFO L93 Difference]: Finished difference Result 30252 states and 34073 transitions. [2020-10-29 08:40:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:40:36,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 953 [2020-10-29 08:40:36,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:40:37,001 INFO L225 Difference]: With dead ends: 30252 [2020-10-29 08:40:37,001 INFO L226 Difference]: Without dead ends: 18441 [2020-10-29 08:40:37,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:40:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18441 states. [2020-10-29 08:40:37,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18441 to 18334. [2020-10-29 08:40:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18334 states. [2020-10-29 08:40:37,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18334 states to 18334 states and 20359 transitions. [2020-10-29 08:40:37,493 INFO L78 Accepts]: Start accepts. Automaton has 18334 states and 20359 transitions. Word has length 953 [2020-10-29 08:40:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:40:37,495 INFO L481 AbstractCegarLoop]: Abstraction has 18334 states and 20359 transitions. [2020-10-29 08:40:37,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:40:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 18334 states and 20359 transitions. [2020-10-29 08:40:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2020-10-29 08:40:37,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:40:37,549 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:40:37,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:40:37,550 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:40:37,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:40:37,550 INFO L82 PathProgramCache]: Analyzing trace with hash -2071807854, now seen corresponding path program 1 times [2020-10-29 08:40:37,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:40:37,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198100677] [2020-10-29 08:40:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:40:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:39,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:42,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1074 [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-29 08:40:42,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 08:40:42,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:43,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:40:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:43,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:43,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:43,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:40:43,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:40:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:43,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:43,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:40:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:43,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:43,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:43,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:40:43,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-29 08:40:43,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:43,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:43,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:43,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:43,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:43,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:43,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:40:43,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:40:43,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:43,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:43,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:40:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:43,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:43,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:43,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:40:43,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:43,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:40:43,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:43,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:43,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:43,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:43,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:43,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:43,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:40:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:43,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:44,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:40:44,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:44,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:40:44,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:44,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:44,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:44,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:44,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:40:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:44,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:44,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:44,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:40:44,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:44,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:40:44,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:44,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:40:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:40:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:40:44,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:40:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:44,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:44,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:44,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:40:44,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:40:44,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:44,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:44,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:40:44,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:40:44,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:40:44,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:44,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-29 08:40:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:40:44,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:40:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:40:44,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:40:44,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:40:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 08:40:44,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:40:44,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:40:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:40:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:40:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 08:40:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:40:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 383 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-29 08:40:45,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198100677] [2020-10-29 08:40:45,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:40:45,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:40:45,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035729744] [2020-10-29 08:40:45,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:40:45,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:40:45,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:40:45,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:40:45,389 INFO L87 Difference]: Start difference. First operand 18334 states and 20359 transitions. Second operand 8 states. [2020-10-29 08:41:00,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:00,612 INFO L93 Difference]: Finished difference Result 40376 states and 45773 transitions. [2020-10-29 08:41:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:41:00,614 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1050 [2020-10-29 08:41:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:00,689 INFO L225 Difference]: With dead ends: 40376 [2020-10-29 08:41:00,689 INFO L226 Difference]: Without dead ends: 23460 [2020-10-29 08:41:00,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:41:00,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23460 states. [2020-10-29 08:41:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23460 to 23403. [2020-10-29 08:41:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23403 states. [2020-10-29 08:41:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23403 states to 23403 states and 25815 transitions. [2020-10-29 08:41:01,334 INFO L78 Accepts]: Start accepts. Automaton has 23403 states and 25815 transitions. Word has length 1050 [2020-10-29 08:41:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:01,337 INFO L481 AbstractCegarLoop]: Abstraction has 23403 states and 25815 transitions. [2020-10-29 08:41:01,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:41:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 23403 states and 25815 transitions. [2020-10-29 08:41:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2020-10-29 08:41:01,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:01,352 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:01,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:41:01,353 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:01,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:01,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1104805708, now seen corresponding path program 1 times [2020-10-29 08:41:01,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:01,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012423619] [2020-10-29 08:41:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:01,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:03,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:06,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:06,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1089 [2020-10-29 08:41:06,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:41:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-29 08:41:06,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:06,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:06,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:06,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:41:06,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:41:06,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:06,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:06,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:06,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:06,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:07,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:07,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:07,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:07,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:41:07,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:07,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:07,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:07,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:07,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:07,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:07,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:07,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:07,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 08:41:07,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:07,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:07,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:07,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:07,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:07,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:07,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:07,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:07,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:07,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:07,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:07,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:41:07,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:07,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:07,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:07,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:07,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:07,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:41:07,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:07,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:41:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:07,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:07,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:41:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:08,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-29 08:41:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:08,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:08,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:08,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 08:41:08,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:08,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 338 proven. 79 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2020-10-29 08:41:08,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012423619] [2020-10-29 08:41:08,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:08,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:41:08,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831519355] [2020-10-29 08:41:08,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:41:08,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:08,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:41:08,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:41:08,824 INFO L87 Difference]: Start difference. First operand 23403 states and 25815 transitions. Second operand 7 states. [2020-10-29 08:41:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:19,891 INFO L93 Difference]: Finished difference Result 55542 states and 62483 transitions. [2020-10-29 08:41:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:41:19,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1065 [2020-10-29 08:41:19,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:19,999 INFO L225 Difference]: With dead ends: 55542 [2020-10-29 08:41:19,999 INFO L226 Difference]: Without dead ends: 33557 [2020-10-29 08:41:20,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:41:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33557 states. [2020-10-29 08:41:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33557 to 33461. [2020-10-29 08:41:20,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33461 states. [2020-10-29 08:41:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 36848 transitions. [2020-10-29 08:41:20,871 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 36848 transitions. Word has length 1065 [2020-10-29 08:41:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:20,873 INFO L481 AbstractCegarLoop]: Abstraction has 33461 states and 36848 transitions. [2020-10-29 08:41:20,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:41:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 36848 transitions. [2020-10-29 08:41:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2020-10-29 08:41:20,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:20,898 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:20,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:41:20,899 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:20,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:20,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1718189096, now seen corresponding path program 1 times [2020-10-29 08:41:20,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:20,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283193703] [2020-10-29 08:41:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:21,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:23,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:25,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:26,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1173 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 08:41:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:26,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:26,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:26,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:26,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:26,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:26,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:26,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:26,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-29 08:41:26,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:26,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:26,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:26,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:26,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:26,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:26,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:26,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:27,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:27,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:27,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:27,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:27,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:27,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-29 08:41:27,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:27,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 08:41:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-29 08:41:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:27,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:41:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:27,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-29 08:41:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:27,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:27,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:27,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 08:41:27,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:27,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:41:27,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:27,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 08:41:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:27,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1052 [2020-10-29 08:41:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:27,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:27,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:27,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:41:27,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:41:27,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:27,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 08:41:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:27,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:28,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 367 proven. 151 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-29 08:41:28,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283193703] [2020-10-29 08:41:28,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:28,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:41:28,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039653681] [2020-10-29 08:41:28,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:41:28,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:28,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:41:28,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:41:28,654 INFO L87 Difference]: Start difference. First operand 33461 states and 36848 transitions. Second operand 7 states. [2020-10-29 08:41:42,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:42,860 INFO L93 Difference]: Finished difference Result 73415 states and 81258 transitions. [2020-10-29 08:41:42,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:41:42,862 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1147 [2020-10-29 08:41:42,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:43,000 INFO L225 Difference]: With dead ends: 73415 [2020-10-29 08:41:43,000 INFO L226 Difference]: Without dead ends: 41372 [2020-10-29 08:41:43,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:41:43,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41372 states. [2020-10-29 08:41:43,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41372 to 41254. [2020-10-29 08:41:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41254 states. [2020-10-29 08:41:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41254 states to 41254 states and 45177 transitions. [2020-10-29 08:41:43,916 INFO L78 Accepts]: Start accepts. Automaton has 41254 states and 45177 transitions. Word has length 1147 [2020-10-29 08:41:43,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:43,917 INFO L481 AbstractCegarLoop]: Abstraction has 41254 states and 45177 transitions. [2020-10-29 08:41:43,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:41:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 41254 states and 45177 transitions. [2020-10-29 08:41:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2020-10-29 08:41:43,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:43,944 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:43,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:41:43,945 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:43,945 INFO L82 PathProgramCache]: Analyzing trace with hash 2032874944, now seen corresponding path program 1 times [2020-10-29 08:41:43,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:43,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381044323] [2020-10-29 08:41:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:44,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:45,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:45,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1300 [2020-10-29 08:41:45,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:45,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1827 [2020-10-29 08:41:45,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:45,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:45,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:41:45,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1269 [2020-10-29 08:41:45,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 08:41:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:41:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:41:46,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 08:41:46,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:41:46,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:41:46,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:41:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:41:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:41:46,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:41:46,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:41:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:41:46,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:41:46,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:41:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:46,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:41:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:46,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:41:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:46,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:47,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:47,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-29 08:41:47,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:47,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 08:41:47,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:47,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:47,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:47,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:47,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:41:47,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:41:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2020-10-29 08:41:47,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381044323] [2020-10-29 08:41:47,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:41:47,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:41:47,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254493640] [2020-10-29 08:41:47,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:41:47,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:47,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:41:47,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:41:47,893 INFO L87 Difference]: Start difference. First operand 41254 states and 45177 transitions. Second operand 5 states. [2020-10-29 08:41:57,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:57,690 INFO L93 Difference]: Finished difference Result 91713 states and 101533 transitions. [2020-10-29 08:41:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:41:57,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1276 [2020-10-29 08:41:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:57,856 INFO L225 Difference]: With dead ends: 91713 [2020-10-29 08:41:57,856 INFO L226 Difference]: Without dead ends: 51877 [2020-10-29 08:41:57,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:41:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51877 states. [2020-10-29 08:41:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51877 to 51836. [2020-10-29 08:41:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51836 states. [2020-10-29 08:41:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51836 states to 51836 states and 56299 transitions. [2020-10-29 08:41:59,206 INFO L78 Accepts]: Start accepts. Automaton has 51836 states and 56299 transitions. Word has length 1276 [2020-10-29 08:41:59,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:59,207 INFO L481 AbstractCegarLoop]: Abstraction has 51836 states and 56299 transitions. [2020-10-29 08:41:59,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:41:59,207 INFO L276 IsEmpty]: Start isEmpty. Operand 51836 states and 56299 transitions. [2020-10-29 08:41:59,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2020-10-29 08:41:59,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:59,232 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:41:59,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:41:59,233 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:59,234 INFO L82 PathProgramCache]: Analyzing trace with hash 821348802, now seen corresponding path program 1 times [2020-10-29 08:41:59,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:59,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678125319] [2020-10-29 08:41:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:59,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:00,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:02,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:03,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:04,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1311 [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:42:04,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:42:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 08:42:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:42:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:42:05,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:42:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:42:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:42:05,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:42:05,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:05,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:42:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:42:05,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:42:05,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:42:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:42:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:42:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:42:05,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:42:05,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:42:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:05,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:42:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:05,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:42:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:05,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:06,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:06,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:42:06,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 08:42:06,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:06,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:42:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:42:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:42:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:06,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-29 08:42:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:06,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 08:42:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:42:06,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:06,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 08:42:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:06,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1188 [2020-10-29 08:42:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:06,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:06,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:06,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:06,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 517 proven. 151 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2020-10-29 08:42:06,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678125319] [2020-10-29 08:42:06,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:42:06,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:42:06,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500106193] [2020-10-29 08:42:06,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:42:06,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:42:06,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:42:06,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:42:06,895 INFO L87 Difference]: Start difference. First operand 51836 states and 56299 transitions. Second operand 7 states.