/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=SHALLOWEST --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/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:32:35,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:32:35,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:32:35,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:32:35,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:32:35,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:32:35,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:32:35,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:32:35,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:32:35,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:32:35,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:32:35,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:32:35,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:32:35,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:32:35,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:32:35,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:32:35,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:32:35,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:32:36,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:32:36,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:32:36,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:32:36,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:32:36,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:32:36,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:32:36,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:32:36,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:32:36,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:32:36,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:32:36,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:32:36,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:32:36,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:32:36,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:32:36,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:32:36,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:32:36,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:32:36,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:32:36,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:32:36,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:32:36,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:32:36,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:32:36,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:32:36,050 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 [2020-10-26 22:32:36,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:32:36,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:32:36,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:32:36,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:32:36,083 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:32:36,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:32:36,083 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:32:36,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:32:36,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:32:36,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:32:36,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:32:36,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:32:36,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:32:36,088 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:32:36,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:32:36,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:32:36,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:32:36,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:32:36,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:32:36,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:32:36,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:32:36,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:32:36,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:32:36,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:32:36,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:32:36,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:32:36,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:32:36,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:32:36,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:32:36,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:32:36,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:32:36,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:32:36,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:32:36,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:32:36,576 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:32:36,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-10-26 22:32:36,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae6beca44/5c7ec0bd42d741bdbc5fdfd669b81ce0/FLAG4e75382f4 [2020-10-26 22:32:37,544 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:32:37,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-10-26 22:32:37,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae6beca44/5c7ec0bd42d741bdbc5fdfd669b81ce0/FLAG4e75382f4 [2020-10-26 22:32:37,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae6beca44/5c7ec0bd42d741bdbc5fdfd669b81ce0 [2020-10-26 22:32:37,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:32:37,787 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:32:37,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:37,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:32:37,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:32:37,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:37" (1/1) ... [2020-10-26 22:32:37,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5531e3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:37, skipping insertion in model container [2020-10-26 22:32:37,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:37" (1/1) ... [2020-10-26 22:32:37,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:32:37,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:32:38,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:38,315 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:32:38,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:38,518 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:32:38,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38 WrapperNode [2020-10-26 22:32:38,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:38,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:32:38,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:32:38,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:32:38,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (1/1) ... [2020-10-26 22:32:38,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:32:38,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:32:38,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:32:38,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:32:38,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (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 [2020-10-26 22:32:38,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:32:38,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:32:38,730 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:32:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:32:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:32:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:32:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:32:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:32:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:32:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:32:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:32:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:32:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:32:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:32:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:32:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:32:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:32:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:32:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:32:40,253 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:32:40,253 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:32:40,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:40 BoogieIcfgContainer [2020-10-26 22:32:40,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:32:40,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:32:40,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:32:40,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:32:40,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:32:37" (1/3) ... [2020-10-26 22:32:40,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7aa764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:40, skipping insertion in model container [2020-10-26 22:32:40,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:38" (2/3) ... [2020-10-26 22:32:40,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7aa764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:40, skipping insertion in model container [2020-10-26 22:32:40,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:40" (3/3) ... [2020-10-26 22:32:40,267 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2020-10-26 22:32:40,285 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:32:40,295 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:32:40,340 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:32:40,413 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:32:40,414 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:32:40,414 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:32:40,414 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:32:40,414 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:32:40,414 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:32:40,414 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:32:40,414 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:32:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:32:40,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-26 22:32:40,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:40,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:40,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:40,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1396504636, now seen corresponding path program 1 times [2020-10-26 22:32:40,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:40,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395018344] [2020-10-26 22:32:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:40,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-26 22:32:41,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 624 [2020-10-26 22:32:41,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-26 22:32:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 22:32:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:41,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:41,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:32:41,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:41,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:41,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:41,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395018344] [2020-10-26 22:32:41,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:41,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:32:41,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69638451] [2020-10-26 22:32:41,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:32:41,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:41,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:32:41,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:32:41,549 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:32:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:43,471 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-26 22:32:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:43,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-26 22:32:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:43,489 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:32:43,489 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:32:43,506 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 [2020-10-26 22:32:43,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:32:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-26 22:32:43,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-26 22:32:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-26 22:32:43,589 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 46 [2020-10-26 22:32:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:43,590 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-26 22:32:43,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:32:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-26 22:32:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-26 22:32:43,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:43,596 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:43,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:32:43,597 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:43,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1786879140, now seen corresponding path program 1 times [2020-10-26 22:32:43,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:43,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853435560] [2020-10-26 22:32:43,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:43,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:44,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-26 22:32:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-10-26 22:32:44,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:32:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 22:32:44,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:44,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:45,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 22:32:45,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:45,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:45,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:45,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-26 22:32:45,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:32:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:45,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853435560] [2020-10-26 22:32:45,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:45,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:32:45,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847766584] [2020-10-26 22:32:45,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:45,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:45,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:45,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:45,423 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-26 22:32:47,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:47,631 INFO L93 Difference]: Finished difference Result 914 states and 1340 transitions. [2020-10-26 22:32:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:47,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-26 22:32:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:47,640 INFO L225 Difference]: With dead ends: 914 [2020-10-26 22:32:47,640 INFO L226 Difference]: Without dead ends: 623 [2020-10-26 22:32:47,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:47,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-26 22:32:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 597. [2020-10-26 22:32:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-26 22:32:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 767 transitions. [2020-10-26 22:32:47,705 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 767 transitions. Word has length 118 [2020-10-26 22:32:47,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:47,705 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 767 transitions. [2020-10-26 22:32:47,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 767 transitions. [2020-10-26 22:32:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 22:32:47,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:47,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:47,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:32:47,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:47,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:47,712 INFO L82 PathProgramCache]: Analyzing trace with hash 138490984, now seen corresponding path program 1 times [2020-10-26 22:32:47,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:47,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282515475] [2020-10-26 22:32:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:47,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-26 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-10-26 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:48,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:32:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:48,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:48,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:32:48,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:48,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:48,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:48,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282515475] [2020-10-26 22:32:48,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:48,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:48,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690785237] [2020-10-26 22:32:48,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:48,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:48,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:48,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:48,721 INFO L87 Difference]: Start difference. First operand 597 states and 767 transitions. Second operand 5 states. [2020-10-26 22:32:50,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:50,091 INFO L93 Difference]: Finished difference Result 1217 states and 1575 transitions. [2020-10-26 22:32:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:50,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-26 22:32:50,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:50,108 INFO L225 Difference]: With dead ends: 1217 [2020-10-26 22:32:50,108 INFO L226 Difference]: Without dead ends: 603 [2020-10-26 22:32:50,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:50,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-26 22:32:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 597. [2020-10-26 22:32:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-26 22:32:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 762 transitions. [2020-10-26 22:32:50,154 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 762 transitions. Word has length 125 [2020-10-26 22:32:50,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:50,155 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 762 transitions. [2020-10-26 22:32:50,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 762 transitions. [2020-10-26 22:32:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-26 22:32:50,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:50,162 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:50,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:32:50,163 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:50,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:50,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1352949256, now seen corresponding path program 1 times [2020-10-26 22:32:50,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:50,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707424431] [2020-10-26 22:32:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:50,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:50,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-26 22:32:51,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:51,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-10-26 22:32:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:51,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:51,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-26 22:32:51,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:32:51,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:51,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:51,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:51,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:51,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:51,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:32:51,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:51,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:51,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:51,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-26 22:32:51,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:32:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 103 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:32:51,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707424431] [2020-10-26 22:32:51,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:51,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:51,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009898357] [2020-10-26 22:32:51,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:51,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:51,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:51,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:51,741 INFO L87 Difference]: Start difference. First operand 597 states and 762 transitions. Second operand 7 states. [2020-10-26 22:32:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:54,269 INFO L93 Difference]: Finished difference Result 1798 states and 2485 transitions. [2020-10-26 22:32:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:54,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-10-26 22:32:54,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:54,279 INFO L225 Difference]: With dead ends: 1798 [2020-10-26 22:32:54,280 INFO L226 Difference]: Without dead ends: 1207 [2020-10-26 22:32:54,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2020-10-26 22:32:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1191. [2020-10-26 22:32:54,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1191 states. [2020-10-26 22:32:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1608 transitions. [2020-10-26 22:32:54,339 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1608 transitions. Word has length 188 [2020-10-26 22:32:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:54,339 INFO L481 AbstractCegarLoop]: Abstraction has 1191 states and 1608 transitions. [2020-10-26 22:32:54,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1608 transitions. [2020-10-26 22:32:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-26 22:32:54,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:54,346 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, 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] [2020-10-26 22:32:54,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:32:54,346 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:54,347 INFO L82 PathProgramCache]: Analyzing trace with hash 841097108, now seen corresponding path program 1 times [2020-10-26 22:32:54,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:54,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422748146] [2020-10-26 22:32:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:54,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-26 22:32:59,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-26 22:32:59,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:32:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:59,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:59,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:59,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:32:59,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:59,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:59,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:59,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:59,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:59,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-26 22:32:59,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:32:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-26 22:32:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:59,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:00,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:00,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:00,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 22:33:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 76 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:33:00,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422748146] [2020-10-26 22:33:00,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:00,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:00,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098839650] [2020-10-26 22:33:00,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:00,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:00,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:00,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:00,160 INFO L87 Difference]: Start difference. First operand 1191 states and 1608 transitions. Second operand 7 states. [2020-10-26 22:33:02,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:02,013 INFO L93 Difference]: Finished difference Result 2690 states and 3600 transitions. [2020-10-26 22:33:02,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:02,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-10-26 22:33:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:02,025 INFO L225 Difference]: With dead ends: 2690 [2020-10-26 22:33:02,025 INFO L226 Difference]: Without dead ends: 1505 [2020-10-26 22:33:02,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:33:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2020-10-26 22:33:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1495. [2020-10-26 22:33:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-26 22:33:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1949 transitions. [2020-10-26 22:33:02,088 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1949 transitions. Word has length 223 [2020-10-26 22:33:02,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:02,088 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1949 transitions. [2020-10-26 22:33:02,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1949 transitions. [2020-10-26 22:33:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-26 22:33:02,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:02,097 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:02,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:33:02,097 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:02,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:02,098 INFO L82 PathProgramCache]: Analyzing trace with hash 593188360, now seen corresponding path program 1 times [2020-10-26 22:33:02,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:02,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267606556] [2020-10-26 22:33:02,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:02,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-26 22:33:06,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4407 [2020-10-26 22:33:06,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:33:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-26 22:33:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:06,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:06,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:33:06,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:06,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:06,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:06,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:06,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:06,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-26 22:33:06,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:33:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:06,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:33:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:06,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:07,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:07,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:33:07,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-26 22:33:07,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:33:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:07,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267606556] [2020-10-26 22:33:07,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:07,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:07,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983580484] [2020-10-26 22:33:07,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:07,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:07,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:07,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:07,342 INFO L87 Difference]: Start difference. First operand 1495 states and 1949 transitions. Second operand 7 states. [2020-10-26 22:33:09,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:09,554 INFO L93 Difference]: Finished difference Result 3167 states and 4280 transitions. [2020-10-26 22:33:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:33:09,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-26 22:33:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:09,566 INFO L225 Difference]: With dead ends: 3167 [2020-10-26 22:33:09,567 INFO L226 Difference]: Without dead ends: 1821 [2020-10-26 22:33:09,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:09,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2020-10-26 22:33:09,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1503. [2020-10-26 22:33:09,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2020-10-26 22:33:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1784 transitions. [2020-10-26 22:33:09,629 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1784 transitions. Word has length 257 [2020-10-26 22:33:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:09,630 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states and 1784 transitions. [2020-10-26 22:33:09,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1784 transitions. [2020-10-26 22:33:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-26 22:33:09,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:09,638 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:09,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:33:09,638 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:09,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1438684144, now seen corresponding path program 1 times [2020-10-26 22:33:09,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:09,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66760254] [2020-10-26 22:33:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:09,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:10,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-26 22:33:12,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:12,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2451 [2020-10-26 22:33:12,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:33:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:33:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:33:12,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:12,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:12,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:12,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:12,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:12,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-26 22:33:12,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:33:12,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:12,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:12,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:12,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:33:12,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-26 22:33:12,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:33:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:33:12,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 173 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:33:13,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66760254] [2020-10-26 22:33:13,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:13,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:33:13,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146858656] [2020-10-26 22:33:13,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:13,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:13,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:13,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:13,212 INFO L87 Difference]: Start difference. First operand 1503 states and 1784 transitions. Second operand 8 states. [2020-10-26 22:33:15,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:15,549 INFO L93 Difference]: Finished difference Result 3914 states and 4761 transitions. [2020-10-26 22:33:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:15,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 302 [2020-10-26 22:33:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:15,569 INFO L225 Difference]: With dead ends: 3914 [2020-10-26 22:33:15,570 INFO L226 Difference]: Without dead ends: 2540 [2020-10-26 22:33:15,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:33:15,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2020-10-26 22:33:15,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2250. [2020-10-26 22:33:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-10-26 22:33:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2774 transitions. [2020-10-26 22:33:15,661 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2774 transitions. Word has length 302 [2020-10-26 22:33:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:15,662 INFO L481 AbstractCegarLoop]: Abstraction has 2250 states and 2774 transitions. [2020-10-26 22:33:15,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2774 transitions. [2020-10-26 22:33:15,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-26 22:33:15,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:15,672 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, 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, 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] [2020-10-26 22:33:15,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:33:15,672 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:15,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:15,673 INFO L82 PathProgramCache]: Analyzing trace with hash -778170184, now seen corresponding path program 1 times [2020-10-26 22:33:15,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:15,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133863730] [2020-10-26 22:33:15,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:15,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:16,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:17,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:20,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:20,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:20,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4832 [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:33:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:20,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:20,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:20,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:20,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:20,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:20,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:20,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:20,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:20,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:20,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:20,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:20,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:20,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-26 22:33:20,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:20,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:33:20,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:20,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:20,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:21,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:21,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:21,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-26 22:33:21,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:21,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:33:21,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:21,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-26 22:33:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:21,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:21,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:21,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:21,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:21,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 22:33:21,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:21,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:21,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:21,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:21,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 202 proven. 86 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:33:21,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133863730] [2020-10-26 22:33:21,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:21,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:21,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606999755] [2020-10-26 22:33:21,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:21,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:21,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:21,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:21,381 INFO L87 Difference]: Start difference. First operand 2250 states and 2774 transitions. Second operand 7 states. [2020-10-26 22:33:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:23,674 INFO L93 Difference]: Finished difference Result 5084 states and 6408 transitions. [2020-10-26 22:33:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:23,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-26 22:33:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:23,692 INFO L225 Difference]: With dead ends: 5084 [2020-10-26 22:33:23,693 INFO L226 Difference]: Without dead ends: 2983 [2020-10-26 22:33:23,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:33:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2020-10-26 22:33:23,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2983. [2020-10-26 22:33:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2983 states. [2020-10-26 22:33:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 3583 transitions. [2020-10-26 22:33:23,804 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 3583 transitions. Word has length 338 [2020-10-26 22:33:23,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:23,805 INFO L481 AbstractCegarLoop]: Abstraction has 2983 states and 3583 transitions. [2020-10-26 22:33:23,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:23,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 3583 transitions. [2020-10-26 22:33:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-26 22:33:23,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:23,817 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, 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, 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] [2020-10-26 22:33:23,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:33:23,817 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:23,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:23,818 INFO L82 PathProgramCache]: Analyzing trace with hash 740712240, now seen corresponding path program 1 times [2020-10-26 22:33:23,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:23,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764420798] [2020-10-26 22:33:23,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:23,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:24,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:24,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:26,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-26 22:33:26,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:33:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2363 [2020-10-26 22:33:26,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:33:26,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:26,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:26,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:26,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:26,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:26,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:26,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:26,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:26,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:26,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 22:33:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:26,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:26,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:26,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:33:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-26 22:33:26,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:33:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:26,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:33:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:26,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:26,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:26,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:26,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-26 22:33:26,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:26,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:26,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:26,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 290 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:33:27,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764420798] [2020-10-26 22:33:27,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:27,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:27,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087189641] [2020-10-26 22:33:27,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:27,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:27,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:27,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:27,027 INFO L87 Difference]: Start difference. First operand 2983 states and 3583 transitions. Second operand 7 states. [2020-10-26 22:33:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:29,346 INFO L93 Difference]: Finished difference Result 6844 states and 8365 transitions. [2020-10-26 22:33:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:33:29,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-26 22:33:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:29,367 INFO L225 Difference]: With dead ends: 6844 [2020-10-26 22:33:29,367 INFO L226 Difference]: Without dead ends: 4010 [2020-10-26 22:33:29,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:33:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2020-10-26 22:33:29,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 3720. [2020-10-26 22:33:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3720 states. [2020-10-26 22:33:29,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 4458 transitions. [2020-10-26 22:33:29,489 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 4458 transitions. Word has length 357 [2020-10-26 22:33:29,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:29,490 INFO L481 AbstractCegarLoop]: Abstraction has 3720 states and 4458 transitions. [2020-10-26 22:33:29,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:29,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 4458 transitions. [2020-10-26 22:33:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-26 22:33:29,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:29,502 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:29,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:33:29,502 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:29,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:29,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1097692852, now seen corresponding path program 1 times [2020-10-26 22:33:29,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:29,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472725635] [2020-10-26 22:33:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:29,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:29,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 376 [2020-10-26 22:33:30,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:30,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-26 22:33:30,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:30,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:33:30,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 22:33:30,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:30,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:30,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:30,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:30,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:30,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:30,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:30,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:30,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:33:30,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:30,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:30,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:33:30,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 22:33:30,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:30,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:33:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:31,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:31,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:33:31,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-26 22:33:31,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:33:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 117 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:33:31,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472725635] [2020-10-26 22:33:31,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:31,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:31,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994571340] [2020-10-26 22:33:31,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:31,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:31,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:31,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:31,178 INFO L87 Difference]: Start difference. First operand 3720 states and 4458 transitions. Second operand 5 states. [2020-10-26 22:33:32,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:32,455 INFO L93 Difference]: Finished difference Result 7297 states and 8783 transitions. [2020-10-26 22:33:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:32,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 360 [2020-10-26 22:33:32,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:32,474 INFO L225 Difference]: With dead ends: 7297 [2020-10-26 22:33:32,474 INFO L226 Difference]: Without dead ends: 3718 [2020-10-26 22:33:32,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:32,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2020-10-26 22:33:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3718. [2020-10-26 22:33:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3718 states. [2020-10-26 22:33:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3718 states to 3718 states and 4449 transitions. [2020-10-26 22:33:32,592 INFO L78 Accepts]: Start accepts. Automaton has 3718 states and 4449 transitions. Word has length 360 [2020-10-26 22:33:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:32,593 INFO L481 AbstractCegarLoop]: Abstraction has 3718 states and 4449 transitions. [2020-10-26 22:33:32,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3718 states and 4449 transitions. [2020-10-26 22:33:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-26 22:33:32,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:32,602 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:32,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:33:32,602 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:32,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1835181420, now seen corresponding path program 1 times [2020-10-26 22:33:32,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:32,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102488648] [2020-10-26 22:33:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:32,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:33,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:34,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-26 22:33:34,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2064 [2020-10-26 22:33:34,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:33:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:33:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:34,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:34,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:34,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:34,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:33:34,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:34,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:34,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:34,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:33:34,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:34,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:33:34,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:34,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:34,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:33:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:35,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:35,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:35,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:33:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:35,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-26 22:33:35,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 293 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:33:35,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102488648] [2020-10-26 22:33:35,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:35,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:33:35,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26285490] [2020-10-26 22:33:35,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:33:35,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:35,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:33:35,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:33:35,302 INFO L87 Difference]: Start difference. First operand 3718 states and 4449 transitions. Second operand 7 states. [2020-10-26 22:33:37,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:37,548 INFO L93 Difference]: Finished difference Result 8006 states and 9685 transitions. [2020-10-26 22:33:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:33:37,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-26 22:33:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:37,569 INFO L225 Difference]: With dead ends: 8006 [2020-10-26 22:33:37,569 INFO L226 Difference]: Without dead ends: 4437 [2020-10-26 22:33:37,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:33:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4437 states. [2020-10-26 22:33:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4437 to 4294. [2020-10-26 22:33:37,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4294 states. [2020-10-26 22:33:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 5197 transitions. [2020-10-26 22:33:37,699 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 5197 transitions. Word has length 366 [2020-10-26 22:33:37,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:37,700 INFO L481 AbstractCegarLoop]: Abstraction has 4294 states and 5197 transitions. [2020-10-26 22:33:37,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:33:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 5197 transitions. [2020-10-26 22:33:37,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-10-26 22:33:37,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:37,711 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:37,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:33:37,711 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:37,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:37,712 INFO L82 PathProgramCache]: Analyzing trace with hash 9440800, now seen corresponding path program 1 times [2020-10-26 22:33:37,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:37,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798205172] [2020-10-26 22:33:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:39,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 410 [2020-10-26 22:33:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1676 [2020-10-26 22:33:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 270 [2020-10-26 22:33:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-26 22:33:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:39,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:39,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:39,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:39,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:39,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:39,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:39,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:39,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:39,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:39,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:33:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:39,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:39,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:39,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 22:33:39,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-26 22:33:39,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:39,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-26 22:33:39,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:39,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-26 22:33:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:39,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:33:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 252 proven. 39 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 22:33:40,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798205172] [2020-10-26 22:33:40,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:40,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:33:40,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921601302] [2020-10-26 22:33:40,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:33:40,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:40,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:33:40,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:40,127 INFO L87 Difference]: Start difference. First operand 4294 states and 5197 transitions. Second operand 6 states. [2020-10-26 22:33:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:44,291 INFO L93 Difference]: Finished difference Result 9317 states and 11372 transitions. [2020-10-26 22:33:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:33:44,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 394 [2020-10-26 22:33:44,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:44,327 INFO L225 Difference]: With dead ends: 9317 [2020-10-26 22:33:44,327 INFO L226 Difference]: Without dead ends: 5172 [2020-10-26 22:33:44,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5172 states. [2020-10-26 22:33:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5172 to 4882. [2020-10-26 22:33:44,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4882 states. [2020-10-26 22:33:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4882 states to 4882 states and 5870 transitions. [2020-10-26 22:33:44,485 INFO L78 Accepts]: Start accepts. Automaton has 4882 states and 5870 transitions. Word has length 394 [2020-10-26 22:33:44,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:44,486 INFO L481 AbstractCegarLoop]: Abstraction has 4882 states and 5870 transitions. [2020-10-26 22:33:44,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:33:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 4882 states and 5870 transitions. [2020-10-26 22:33:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-26 22:33:44,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:44,498 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:33:44,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:33:44,499 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:44,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:44,499 INFO L82 PathProgramCache]: Analyzing trace with hash 306549264, now seen corresponding path program 1 times [2020-10-26 22:33:44,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:44,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248772955] [2020-10-26 22:33:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:45,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:45,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:45,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 431 [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2351 [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-26 22:33:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 22:33:46,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:47,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:33:47,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:33:47,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:33:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:47,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:33:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 22:33:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:47,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:47,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:33:47,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2020-10-26 22:33:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:47,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:47,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:47,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:47,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:33:47,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 324 proven. 89 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2020-10-26 22:33:47,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248772955] [2020-10-26 22:33:47,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:47,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:33:47,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523859576] [2020-10-26 22:33:47,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:33:47,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:47,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:33:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:47,765 INFO L87 Difference]: Start difference. First operand 4882 states and 5870 transitions. Second operand 6 states. [2020-10-26 22:33:49,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:49,590 INFO L93 Difference]: Finished difference Result 9650 states and 11638 transitions. [2020-10-26 22:33:49,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:33:49,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 413 [2020-10-26 22:33:49,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:49,609 INFO L225 Difference]: With dead ends: 9650 [2020-10-26 22:33:49,609 INFO L226 Difference]: Without dead ends: 4898 [2020-10-26 22:33:49,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:33:49,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2020-10-26 22:33:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4880. [2020-10-26 22:33:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4880 states. [2020-10-26 22:33:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4880 states to 4880 states and 5833 transitions. [2020-10-26 22:33:49,742 INFO L78 Accepts]: Start accepts. Automaton has 4880 states and 5833 transitions. Word has length 413 [2020-10-26 22:33:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:49,743 INFO L481 AbstractCegarLoop]: Abstraction has 4880 states and 5833 transitions. [2020-10-26 22:33:49,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:33:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4880 states and 5833 transitions. [2020-10-26 22:33:49,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-26 22:33:49,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:49,756 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, 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, 3, 3, 3, 3, 3, 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] [2020-10-26 22:33:49,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:33:49,756 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:49,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:49,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1324240456, now seen corresponding path program 1 times [2020-10-26 22:33:49,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:49,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879853499] [2020-10-26 22:33:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:49,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:49,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:50,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:51,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 449 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4442 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-26 22:33:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:54,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:54,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:54,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:33:54,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:54,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:33:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:54,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:33:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:54,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:33:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:54,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:33:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:54,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:54,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-26 22:33:54,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 22:33:54,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:33:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:33:54,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:54,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-26 22:33:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:54,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:54,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:54,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 412 proven. 173 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-26 22:33:55,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879853499] [2020-10-26 22:33:55,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:55,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:33:55,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491867310] [2020-10-26 22:33:55,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:33:55,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:55,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:33:55,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:33:55,149 INFO L87 Difference]: Start difference. First operand 4880 states and 5833 transitions. Second operand 8 states. [2020-10-26 22:33:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:57,985 INFO L93 Difference]: Finished difference Result 10197 states and 12163 transitions. [2020-10-26 22:33:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:33:57,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 431 [2020-10-26 22:33:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:58,004 INFO L225 Difference]: With dead ends: 10197 [2020-10-26 22:33:58,004 INFO L226 Difference]: Without dead ends: 5466 [2020-10-26 22:33:58,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:33:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5466 states. [2020-10-26 22:33:58,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5466 to 5174. [2020-10-26 22:33:58,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5174 states. [2020-10-26 22:33:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5174 states to 5174 states and 5941 transitions. [2020-10-26 22:33:58,139 INFO L78 Accepts]: Start accepts. Automaton has 5174 states and 5941 transitions. Word has length 431 [2020-10-26 22:33:58,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:58,140 INFO L481 AbstractCegarLoop]: Abstraction has 5174 states and 5941 transitions. [2020-10-26 22:33:58,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:33:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5174 states and 5941 transitions. [2020-10-26 22:33:58,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-10-26 22:33:58,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:58,153 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:33:58,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:33:58,154 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:58,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:58,155 INFO L82 PathProgramCache]: Analyzing trace with hash -593573100, now seen corresponding path program 1 times [2020-10-26 22:33:58,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:58,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882389192] [2020-10-26 22:33:58,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:58,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:58,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 467 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1569 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-26 22:33:59,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:59,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:59,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:59,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:59,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:00,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:00,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:00,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:34:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:00,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:34:00,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:34:00,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:00,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:00,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:34:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:00,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:00,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:34:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:00,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-26 22:34:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:00,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:00,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:00,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:00,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:00,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-26 22:34:00,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:00,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:34:00,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:00,450 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 372 proven. 40 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2020-10-26 22:34:00,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882389192] [2020-10-26 22:34:00,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:00,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:34:00,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263280470] [2020-10-26 22:34:00,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:34:00,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:00,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:34:00,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:34:00,453 INFO L87 Difference]: Start difference. First operand 5174 states and 5941 transitions. Second operand 6 states. [2020-10-26 22:34:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:02,444 INFO L93 Difference]: Finished difference Result 11353 states and 13206 transitions. [2020-10-26 22:34:02,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:34:02,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 449 [2020-10-26 22:34:02,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:02,473 INFO L225 Difference]: With dead ends: 11353 [2020-10-26 22:34:02,473 INFO L226 Difference]: Without dead ends: 6328 [2020-10-26 22:34:02,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:02,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2020-10-26 22:34:02,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 5891. [2020-10-26 22:34:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5891 states. [2020-10-26 22:34:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5891 states to 5891 states and 6746 transitions. [2020-10-26 22:34:02,628 INFO L78 Accepts]: Start accepts. Automaton has 5891 states and 6746 transitions. Word has length 449 [2020-10-26 22:34:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:02,629 INFO L481 AbstractCegarLoop]: Abstraction has 5891 states and 6746 transitions. [2020-10-26 22:34:02,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:34:02,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5891 states and 6746 transitions. [2020-10-26 22:34:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-10-26 22:34:02,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:02,652 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:02,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:34:02,652 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:02,653 INFO L82 PathProgramCache]: Analyzing trace with hash -722077368, now seen corresponding path program 1 times [2020-10-26 22:34:02,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:02,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128706531] [2020-10-26 22:34:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:02,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:02,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:03,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:07,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 518 [2020-10-26 22:34:07,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-26 22:34:07,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:07,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:07,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-26 22:34:07,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-26 22:34:07,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:07,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:07,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:07,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:34:07,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:07,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:07,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:07,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:07,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:07,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:07,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:34:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:08,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:34:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:08,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:08,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:34:08,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-26 22:34:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:08,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:08,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:08,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:08,552 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 357 proven. 112 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-26 22:34:08,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128706531] [2020-10-26 22:34:08,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:08,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:08,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935642379] [2020-10-26 22:34:08,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:08,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:08,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:08,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:08,555 INFO L87 Difference]: Start difference. First operand 5891 states and 6746 transitions. Second operand 7 states. [2020-10-26 22:34:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:11,196 INFO L93 Difference]: Finished difference Result 12376 states and 14262 transitions. [2020-10-26 22:34:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:11,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 500 [2020-10-26 22:34:11,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:11,225 INFO L225 Difference]: With dead ends: 12376 [2020-10-26 22:34:11,225 INFO L226 Difference]: Without dead ends: 6634 [2020-10-26 22:34:11,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:34:11,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2020-10-26 22:34:11,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 6481. [2020-10-26 22:34:11,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6481 states. [2020-10-26 22:34:11,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6481 states to 6481 states and 7474 transitions. [2020-10-26 22:34:11,376 INFO L78 Accepts]: Start accepts. Automaton has 6481 states and 7474 transitions. Word has length 500 [2020-10-26 22:34:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:11,377 INFO L481 AbstractCegarLoop]: Abstraction has 6481 states and 7474 transitions. [2020-10-26 22:34:11,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:11,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6481 states and 7474 transitions. [2020-10-26 22:34:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-10-26 22:34:11,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:11,398 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:11,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:34:11,399 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:11,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:11,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1778958960, now seen corresponding path program 1 times [2020-10-26 22:34:11,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:11,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593348477] [2020-10-26 22:34:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:11,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:12,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:12,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 590 [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1886 [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 399 [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:34:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:34:13,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 22:34:13,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:34:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 22:34:13,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:34:13,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:13,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-26 22:34:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:34:13,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-26 22:34:13,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 22:34:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-26 22:34:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:14,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:14,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:14,375 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 521 proven. 19 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2020-10-26 22:34:14,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593348477] [2020-10-26 22:34:14,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:14,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:14,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299861583] [2020-10-26 22:34:14,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:14,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:14,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:14,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:14,378 INFO L87 Difference]: Start difference. First operand 6481 states and 7474 transitions. Second operand 8 states. [2020-10-26 22:34:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:16,808 INFO L93 Difference]: Finished difference Result 12840 states and 14804 transitions. [2020-10-26 22:34:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:16,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 572 [2020-10-26 22:34:16,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:16,815 INFO L225 Difference]: With dead ends: 12840 [2020-10-26 22:34:16,816 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:34:16,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:34:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:34:16,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:34:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:34:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:34:16,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 572 [2020-10-26 22:34:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:16,838 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:34:16,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:34:16,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:34:16,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 22:34:16,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:34:17,460 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 183 [2020-10-26 22:34:18,855 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 183 [2020-10-26 22:34:19,830 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 64 [2020-10-26 22:34:21,983 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 314 DAG size of output: 95 [2020-10-26 22:34:22,795 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 75 [2020-10-26 22:34:23,657 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 64 [2020-10-26 22:34:23,661 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:34:23,661 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:34:23,661 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:34:23,661 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:34:23,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:34:23,662 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,663 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,664 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:34:23,665 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:34:23,666 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:34:23,667 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,668 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:34:23,669 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:34:23,670 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:34:23,671 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L270 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~a10~0)|))) (.cse3 (= 4 |old(~a10~0)|)) (.cse7 (not (<= |old(~a19~0)| 8))) (.cse8 (not (<= 8 |old(~a19~0)|))) (.cse2 (not (= 14 ~a4~0))) (.cse4 (not (= ~a12~0 0))) (.cse0 (not (= 9 |old(~a19~0)|))) (.cse5 (not (<= 2 |old(~a10~0)|))) (.cse6 (not (<= |old(~a1~0)| 589891)))) (and (or .cse0 .cse1) (or .cse2 (not .cse3) (not (= 8 |old(~a19~0)|)) (not (<= (+ |old(~a1~0)| 14262) 0)) .cse4) (or .cse5 (not (<= |old(~a10~0)| 2))) (or .cse1 (not (<= |old(~a1~0)| 505272))) (or (not (<= 219 |old(~a1~0)|)) .cse5 .cse6) (or .cse3 .cse5 .cse6) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse5) (or (not (= |old(~a10~0)| 1)) .cse6) (or .cse7 (not (<= 56 |old(~a1~0)|)) .cse8 .cse5 .cse2 .cse4 (not (<= |old(~a1~0)| 144))) (or .cse7 .cse8 .cse2 (not (<= 1 |old(~a10~0)|)) (not (<= |old(~a10~0)| 1)) .cse4) (or .cse0 .cse5 .cse6))) [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L123-1(line 123) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:34:23,672 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:34:23,673 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse14 (= ~a19~0 |old(~a19~0)|)) (.cse7 (= ~a1~0 |old(~a1~0)|)) (.cse8 (= ~a10~0 |old(~a10~0)|))) (let ((.cse2 (not (<= |old(~a1~0)| 505272))) (.cse5 (= 4 |old(~a10~0)|)) (.cse13 (not (= 9 |old(~a19~0)|))) (.cse1 (not (= 0 |old(~a10~0)|))) (.cse10 (not (<= |old(~a19~0)| 8))) (.cse11 (not (<= 8 |old(~a19~0)|))) (.cse6 (not (= 14 ~a4~0))) (.cse12 (and (<= 8 ~a19~0) (<= ~a19~0 8) .cse7 .cse8)) (.cse9 (not (= ~a12~0 0))) (.cse0 (and .cse7 .cse14 .cse8)) (.cse4 (not (<= |old(~a1~0)| 589891))) (.cse3 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 219 |old(~a1~0)|)) .cse0 .cse3 .cse4) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse0 .cse3) (or .cse0 .cse5 .cse3 .cse2) (or .cse6 (not .cse5) (not (= 8 |old(~a19~0)|)) (not (<= (+ |old(~a1~0)| 14262) 0)) (and (= ~a19~0 8) .cse7 .cse8) .cse9) (or .cse10 .cse11 .cse6 .cse12 (not (<= 1 |old(~a10~0)|)) (not (<= |old(~a10~0)| 1)) .cse9) (or .cse13 .cse0 .cse3 .cse4) (or .cse13 .cse0 .cse1) (or .cse10 (not (<= 4 |old(~a10~0)|)) (not (<= 56 |old(~a1~0)|)) .cse11 .cse6 .cse12 .cse9 (not (<= |old(~a1~0)| 144))) (or .cse0 (not (= |old(~a10~0)| 1)) .cse4) (or (and (<= ~a10~0 2) .cse7 .cse14 (<= 2 ~a10~0)) .cse3 (not (<= |old(~a10~0)| 2)))))) [2020-10-26 22:34:23,673 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:34:23,674 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:34:23,675 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:34:23,676 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,677 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:34:23,678 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:34:23,678 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:34:23,678 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:34:23,679 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse2 (= ~a19~0 9)) (.cse5 (<= 8 ~a19~0)) (.cse8 (<= ~a19~0 8)) (.cse6 (= 14 ~a4~0)) (.cse7 (= ~a12~0 0)) (.cse0 (<= ~a1~0 589891)) (.cse4 (<= 2 ~a10~0)) (.cse1 (= ~a10~0 0)) (.cse3 (<= ~a1~0 505272))) (or (and .cse0 (= ~a10~0 1)) (and .cse1 .cse2) (and (not (= ~a10~0 4)) .cse3 .cse4) (and (<= ~a10~0 2) .cse4) (and .cse0 .cse2 .cse4) (not (= 0 |old(~a10~0)|)) (and (<= ~a1~0 144) .cse5 .cse6 .cse7 .cse8 (<= 56 ~a1~0) .cse4) (and (<= (+ ~a1~0 75821) 0) .cse4) (and .cse5 .cse6 (<= 1 ~a10~0) .cse7 .cse8 (<= ~a10~0 1)) (not (= 9 |old(~a19~0)|)) (and (= ~a19~0 8) .cse6 .cse7 (<= (+ ~a1~0 14262) 0) .cse4) (not (<= |old(~a1~0)| 23)) (and .cse0 (<= 219 ~a1~0) .cse4) (and .cse1 .cse3))) [2020-10-26 22:34:23,679 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:34:23,679 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:34:23,679 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (= ~a19~0 9)) (.cse5 (<= 8 ~a19~0)) (.cse8 (<= ~a19~0 8)) (.cse6 (= 14 ~a4~0)) (.cse7 (= ~a12~0 0)) (.cse0 (<= ~a1~0 589891)) (.cse4 (<= 2 ~a10~0)) (.cse1 (= ~a10~0 0)) (.cse3 (<= ~a1~0 505272))) (or (and .cse0 (= ~a10~0 1)) (and .cse1 .cse2) (and (not (= ~a10~0 4)) .cse3 .cse4) (and (<= ~a10~0 2) .cse4) (and .cse0 .cse2 .cse4) (not (= 0 |old(~a10~0)|)) (and (<= ~a1~0 144) .cse5 .cse6 .cse7 .cse8 (<= 56 ~a1~0) .cse4) (and (<= (+ ~a1~0 75821) 0) .cse4) (and .cse5 .cse6 (<= 1 ~a10~0) .cse7 .cse8 (<= ~a10~0 1)) (not (= 9 |old(~a19~0)|)) (and (= ~a19~0 8) .cse6 .cse7 (<= (+ ~a1~0 14262) 0) .cse4) (not (<= |old(~a1~0)| 23)) (and .cse0 (<= 219 ~a1~0) .cse4) (and .cse1 .cse3))) [2020-10-26 22:34:23,679 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:34:23,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:34:23 BoogieIcfgContainer [2020-10-26 22:34:23,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:34:23,715 INFO L168 Benchmark]: Toolchain (without parser) took 105929.97 ms. Allocated memory was 156.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 129.5 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 808.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:23,717 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 156.2 MB. Free memory is still 129.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:34:23,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.52 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 102.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:23,719 INFO L168 Benchmark]: Boogie Preprocessor took 133.61 ms. Allocated memory is still 156.2 MB. Free memory was 102.2 MB in the beginning and 97.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:23,721 INFO L168 Benchmark]: RCFGBuilder took 1600.62 ms. Allocated memory is still 156.2 MB. Free memory was 97.5 MB in the beginning and 72.1 MB in the end (delta: 25.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:23,721 INFO L168 Benchmark]: TraceAbstraction took 103451.87 ms. Allocated memory was 156.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 71.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 749.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:34:23,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 156.2 MB. Free memory is still 129.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 731.52 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 102.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 133.61 ms. Allocated memory is still 156.2 MB. Free memory was 102.2 MB in the beginning and 97.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1600.62 ms. Allocated memory is still 156.2 MB. Free memory was 97.5 MB in the beginning and 72.1 MB in the end (delta: 25.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 103451.87 ms. Allocated memory was 156.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 71.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 749.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((((((a1 <= 589891 && a10 == 1) || (a10 == 0 && a19 == 9)) || ((!(a10 == 4) && a1 <= 505272) && 2 <= a10)) || (a10 <= 2 && 2 <= a10)) || ((a1 <= 589891 && a19 == 9) && 2 <= a10)) || !(0 == \old(a10))) || ((((((a1 <= 144 && 8 <= a19) && 14 == a4) && a12 == 0) && a19 <= 8) && 56 <= a1) && 2 <= a10)) || (a1 + 75821 <= 0 && 2 <= a10)) || (((((8 <= a19 && 14 == a4) && 1 <= a10) && a12 == 0) && a19 <= 8) && a10 <= 1)) || !(9 == \old(a19))) || ((((a19 == 8 && 14 == a4) && a12 == 0) && a1 + 14262 <= 0) && 2 <= a10)) || !(\old(a1) <= 23)) || ((a1 <= 589891 && 219 <= a1) && 2 <= a10)) || (a10 == 0 && a1 <= 505272) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 96.4s, OverallIterations: 17, TraceHistogramMax: 5, AutomataDifference: 38.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 467 SDtfs, 6616 SDslu, 555 SDs, 0 SdLazy, 15593 SolverSat, 1889 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 27.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 179 SyntacticMatches, 3 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6481occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 2295 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 773 PreInvPairs, 871 NumberOfFragments, 821 HoareAnnotationTreeSize, 773 FomulaSimplifications, 139864 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14197 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 52.0s InterpolantComputationTime, 5439 NumberOfCodeBlocks, 5439 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5422 ConstructedInterpolants, 0 QuantifiedInterpolants, 5392246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 5551/6291 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...