/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:28:44,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:28:44,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:28:44,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:28:44,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:28:44,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:28:44,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:28:44,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:28:44,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:28:44,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:28:44,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:28:44,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:28:44,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:28:44,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:28:44,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:28:44,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:28:44,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:28:44,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:28:44,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:28:44,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:28:44,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:28:44,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:28:44,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:28:44,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:28:44,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:28:44,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:28:44,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:28:44,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:28:44,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:28:44,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:28:44,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:28:44,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:28:44,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:28:44,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:28:44,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:28:44,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:28:44,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:28:44,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:28:44,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:28:44,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:28:44,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:28:44,998 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 [2020-09-25 04:28:45,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:28:45,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:28:45,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:28:45,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:28:45,028 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:28:45,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:28:45,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:28:45,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:28:45,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:28:45,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:28:45,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:28:45,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:28:45,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:28:45,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:28:45,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:28:45,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:28:45,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:28:45,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:28:45,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:28:45,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:28:45,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:28:45,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:28:45,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:28:45,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:28:45,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:28:45,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:28:45,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:28:45,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:28:45,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:28:45,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:28:45,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:28:45,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:28:45,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:28:45,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:28:45,508 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:28:45,509 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-09-25 04:28:45,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1d6c3d2f/60b7516385c9433d8a5e849ec81446ca/FLAGa3ce7905b [2020-09-25 04:28:46,242 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:28:46,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-09-25 04:28:46,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1d6c3d2f/60b7516385c9433d8a5e849ec81446ca/FLAGa3ce7905b [2020-09-25 04:28:46,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1d6c3d2f/60b7516385c9433d8a5e849ec81446ca [2020-09-25 04:28:46,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:28:46,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:28:46,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:28:46,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:28:46,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:28:46,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:28:46" (1/1) ... [2020-09-25 04:28:46,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f78b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:46, skipping insertion in model container [2020-09-25 04:28:46,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:28:46" (1/1) ... [2020-09-25 04:28:46,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:28:46,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:28:47,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:28:47,070 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:28:47,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:28:47,271 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:28:47,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47 WrapperNode [2020-09-25 04:28:47,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:28:47,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:28:47,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:28:47,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:28:47,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (1/1) ... [2020-09-25 04:28:47,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:28:47,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:28:47,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:28:47,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:28:47,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (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 [2020-09-25 04:28:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:28:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:28:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 04:28:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:28:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 04:28:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:28:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:28:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:28:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:28:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:28:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:28:48,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:28:48,924 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:28:48,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:28:48 BoogieIcfgContainer [2020-09-25 04:28:48,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:28:48,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:28:48,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:28:48,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:28:48,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:28:46" (1/3) ... [2020-09-25 04:28:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60617e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:28:48, skipping insertion in model container [2020-09-25 04:28:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:47" (2/3) ... [2020-09-25 04:28:48,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60617e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:28:48, skipping insertion in model container [2020-09-25 04:28:48,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:28:48" (3/3) ... [2020-09-25 04:28:48,953 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label50.c [2020-09-25 04:28:48,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:28:48,979 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:28:49,000 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:28:49,040 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:28:49,040 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:28:49,040 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:28:49,040 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:28:49,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:28:49,041 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:28:49,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:28:49,041 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:28:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 04:28:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 04:28:49,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:49,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:49,099 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:49,108 INFO L82 PathProgramCache]: Analyzing trace with hash -593885342, now seen corresponding path program 1 times [2020-09-25 04:28:49,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:49,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803637987] [2020-09-25 04:28:49,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:49,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:49,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:50,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:51,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:53,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:53,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 04:28:53,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:28:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4303 [2020-09-25 04:28:53,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:53,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:53,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:28:53,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:28:53,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:28:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:28:53,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:53,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:53,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:53,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:53,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:53,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 04:28:53,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:53,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:28:53,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:28:54,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803637987] [2020-09-25 04:28:54,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:28:54,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:28:54,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150926715] [2020-09-25 04:28:54,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:28:54,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:54,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:28:54,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:28:54,095 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-09-25 04:28:57,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:57,075 INFO L93 Difference]: Finished difference Result 1539 states and 2132 transitions. [2020-09-25 04:28:57,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:28:57,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-09-25 04:28:57,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:57,116 INFO L225 Difference]: With dead ends: 1539 [2020-09-25 04:28:57,116 INFO L226 Difference]: Without dead ends: 935 [2020-09-25 04:28:57,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:28:57,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-09-25 04:28:57,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 878. [2020-09-25 04:28:57,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 04:28:57,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1089 transitions. [2020-09-25 04:28:57,311 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1089 transitions. Word has length 107 [2020-09-25 04:28:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:57,312 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1089 transitions. [2020-09-25 04:28:57,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:28:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1089 transitions. [2020-09-25 04:28:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 04:28:57,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:57,323 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:57,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:28:57,324 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:57,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:57,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1658093710, now seen corresponding path program 1 times [2020-09-25 04:28:57,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:57,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269834734] [2020-09-25 04:28:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:57,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:57,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:57,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:58,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:00,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:00,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 04:29:00,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:29:00,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3206 [2020-09-25 04:29:00,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:00,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 04:29:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:29:00,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:00,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:00,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:00,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:00,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:00,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:29:00,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:00,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:00,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:00,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:00,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:29:00,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:00,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:29:00,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:00,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:29:00,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:29:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:00,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269834734] [2020-09-25 04:29:00,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:00,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:29:00,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238130232] [2020-09-25 04:29:00,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:29:00,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:00,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:29:00,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:29:00,874 INFO L87 Difference]: Start difference. First operand 878 states and 1089 transitions. Second operand 5 states. [2020-09-25 04:29:02,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:02,739 INFO L93 Difference]: Finished difference Result 2199 states and 2857 transitions. [2020-09-25 04:29:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:29:02,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-09-25 04:29:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:02,763 INFO L225 Difference]: With dead ends: 2199 [2020-09-25 04:29:02,763 INFO L226 Difference]: Without dead ends: 1343 [2020-09-25 04:29:02,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:29:02,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2020-09-25 04:29:02,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1330. [2020-09-25 04:29:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1330 states. [2020-09-25 04:29:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1680 transitions. [2020-09-25 04:29:02,829 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1680 transitions. Word has length 125 [2020-09-25 04:29:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:02,830 INFO L479 AbstractCegarLoop]: Abstraction has 1330 states and 1680 transitions. [2020-09-25 04:29:02,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:29:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1680 transitions. [2020-09-25 04:29:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-25 04:29:02,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:02,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:02,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:29:02,838 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:02,838 INFO L82 PathProgramCache]: Analyzing trace with hash -125182521, now seen corresponding path program 1 times [2020-09-25 04:29:02,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:02,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036264031] [2020-09-25 04:29:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:02,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:03,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 04:29:04,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:29:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2119 [2020-09-25 04:29:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:04,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 04:29:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 04:29:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:29:05,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:05,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:05,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:05,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:05,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:29:05,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:05,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:05,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:05,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:05,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:05,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 04:29:05,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:29:05,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:05,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:29:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:05,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036264031] [2020-09-25 04:29:05,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:05,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:29:05,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813809911] [2020-09-25 04:29:05,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:29:05,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:05,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:29:05,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:29:05,214 INFO L87 Difference]: Start difference. First operand 1330 states and 1680 transitions. Second operand 5 states. [2020-09-25 04:29:06,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:06,906 INFO L93 Difference]: Finished difference Result 3411 states and 4445 transitions. [2020-09-25 04:29:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:29:06,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-09-25 04:29:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:06,921 INFO L225 Difference]: With dead ends: 3411 [2020-09-25 04:29:06,922 INFO L226 Difference]: Without dead ends: 1270 [2020-09-25 04:29:06,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:29:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2020-09-25 04:29:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1257. [2020-09-25 04:29:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1257 states. [2020-09-25 04:29:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1563 transitions. [2020-09-25 04:29:06,985 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1563 transitions. Word has length 141 [2020-09-25 04:29:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:06,987 INFO L479 AbstractCegarLoop]: Abstraction has 1257 states and 1563 transitions. [2020-09-25 04:29:06,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:29:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1563 transitions. [2020-09-25 04:29:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-25 04:29:06,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:06,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:07,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:29:07,000 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:07,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1712229635, now seen corresponding path program 1 times [2020-09-25 04:29:07,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:07,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129278578] [2020-09-25 04:29:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:07,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:07,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:07,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 04:29:07,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-25 04:29:07,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:07,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:29:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:29:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:29:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:07,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:07,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:07,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:07,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:07,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:29:07,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:07,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:07,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:29:07,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:07,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:07,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:07,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:07,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:29:07,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 04:29:07,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:07,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:29:07,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:07,733 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:29:07,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129278578] [2020-09-25 04:29:07,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:29:07,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:29:07,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740067640] [2020-09-25 04:29:07,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:07,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:07,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:07,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:07,738 INFO L87 Difference]: Start difference. First operand 1257 states and 1563 transitions. Second operand 7 states. [2020-09-25 04:29:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:09,855 INFO L93 Difference]: Finished difference Result 3481 states and 4471 transitions. [2020-09-25 04:29:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:29:09,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-09-25 04:29:09,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:09,876 INFO L225 Difference]: With dead ends: 3481 [2020-09-25 04:29:09,876 INFO L226 Difference]: Without dead ends: 2246 [2020-09-25 04:29:09,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:29:09,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2020-09-25 04:29:09,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2196. [2020-09-25 04:29:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2196 states. [2020-09-25 04:29:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2604 transitions. [2020-09-25 04:29:09,968 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2604 transitions. Word has length 145 [2020-09-25 04:29:09,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:09,969 INFO L479 AbstractCegarLoop]: Abstraction has 2196 states and 2604 transitions. [2020-09-25 04:29:09,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:09,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2604 transitions. [2020-09-25 04:29:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 04:29:09,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:09,979 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:09,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:29:09,980 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash 740847210, now seen corresponding path program 1 times [2020-09-25 04:29:09,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:09,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050711013] [2020-09-25 04:29:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:10,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:10,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:10,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 04:29:10,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:10,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 04:29:10,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:10,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 04:29:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:29:10,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:10,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:10,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:10,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:10,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:10,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:29:10,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:10,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:10,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:10,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:10,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:10,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:29:10,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:29:10,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:10,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:29:10,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:10,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 04:29:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:10,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:10,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:10,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:29:10,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:10,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 04:29:10,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:10,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:29:10,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:29:10,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050711013] [2020-09-25 04:29:10,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:10,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:29:10,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296090912] [2020-09-25 04:29:10,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:29:10,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:10,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:29:10,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:29:10,731 INFO L87 Difference]: Start difference. First operand 2196 states and 2604 transitions. Second operand 8 states. [2020-09-25 04:29:10,934 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-09-25 04:29:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:13,004 INFO L93 Difference]: Finished difference Result 4872 states and 5893 transitions. [2020-09-25 04:29:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:29:13,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-09-25 04:29:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:13,027 INFO L225 Difference]: With dead ends: 4872 [2020-09-25 04:29:13,027 INFO L226 Difference]: Without dead ends: 2698 [2020-09-25 04:29:13,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:29:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2020-09-25 04:29:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2670. [2020-09-25 04:29:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2020-09-25 04:29:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3196 transitions. [2020-09-25 04:29:13,145 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3196 transitions. Word has length 162 [2020-09-25 04:29:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:13,146 INFO L479 AbstractCegarLoop]: Abstraction has 2670 states and 3196 transitions. [2020-09-25 04:29:13,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:29:13,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3196 transitions. [2020-09-25 04:29:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:29:13,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:13,157 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:13,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:29:13,158 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:13,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:13,158 INFO L82 PathProgramCache]: Analyzing trace with hash -451289247, now seen corresponding path program 1 times [2020-09-25 04:29:13,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:13,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821370286] [2020-09-25 04:29:13,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:13,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:13,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:14,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 04:29:14,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:29:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-09-25 04:29:14,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:14,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 04:29:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:29:14,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:14,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:14,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:14,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:14,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:29:14,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:14,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:14,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:14,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:14,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:14,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:14,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:29:14,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:14,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:29:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:14,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 04:29:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:14,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:14,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:14,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:29:14,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:14,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:29:14,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:14,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:29:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:29:14,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821370286] [2020-09-25 04:29:14,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:14,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:29:14,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418770538] [2020-09-25 04:29:14,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:14,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:14,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:14,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:14,417 INFO L87 Difference]: Start difference. First operand 2670 states and 3196 transitions. Second operand 7 states. [2020-09-25 04:29:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:17,615 INFO L93 Difference]: Finished difference Result 7231 states and 8730 transitions. [2020-09-25 04:29:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:29:17,619 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-25 04:29:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:17,638 INFO L225 Difference]: With dead ends: 7231 [2020-09-25 04:29:17,639 INFO L226 Difference]: Without dead ends: 4223 [2020-09-25 04:29:17,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:29:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2020-09-25 04:29:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 4165. [2020-09-25 04:29:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4165 states. [2020-09-25 04:29:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4165 states to 4165 states and 4875 transitions. [2020-09-25 04:29:17,748 INFO L78 Accepts]: Start accepts. Automaton has 4165 states and 4875 transitions. Word has length 167 [2020-09-25 04:29:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:17,749 INFO L479 AbstractCegarLoop]: Abstraction has 4165 states and 4875 transitions. [2020-09-25 04:29:17,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4165 states and 4875 transitions. [2020-09-25 04:29:17,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 04:29:17,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:17,761 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:17,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:29:17,761 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:17,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:17,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1664304064, now seen corresponding path program 1 times [2020-09-25 04:29:17,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:17,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477887138] [2020-09-25 04:29:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:17,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:19,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 04:29:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:29:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1682 [2020-09-25 04:29:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:19,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 04:29:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 04:29:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:19,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:19,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:19,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:19,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:19,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:19,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:29:19,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:19,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:19,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:19,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:19,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:19,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:19,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:19,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:19,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:29:19,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:29:19,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:19,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:29:19,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:19,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 04:29:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:19,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:19,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:19,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 04:29:19,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 04:29:19,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:19,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 04:29:19,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:19,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 04:29:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:19,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:19,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:19,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:29:19,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:19,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:29:19,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:19,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:19,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:19,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 04:29:19,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 92 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 04:29:19,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477887138] [2020-09-25 04:29:19,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:19,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:29:19,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410580498] [2020-09-25 04:29:19,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:19,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:19,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:19,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:19,797 INFO L87 Difference]: Start difference. First operand 4165 states and 4875 transitions. Second operand 7 states. [2020-09-25 04:29:21,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:21,858 INFO L93 Difference]: Finished difference Result 7991 states and 9409 transitions. [2020-09-25 04:29:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:29:21,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-09-25 04:29:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:21,877 INFO L225 Difference]: With dead ends: 7991 [2020-09-25 04:29:21,877 INFO L226 Difference]: Without dead ends: 4207 [2020-09-25 04:29:21,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:29:21,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2020-09-25 04:29:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 4183. [2020-09-25 04:29:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4183 states. [2020-09-25 04:29:21,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 4777 transitions. [2020-09-25 04:29:21,998 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 4777 transitions. Word has length 198 [2020-09-25 04:29:21,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:21,998 INFO L479 AbstractCegarLoop]: Abstraction has 4183 states and 4777 transitions. [2020-09-25 04:29:21,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:21,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 4777 transitions. [2020-09-25 04:29:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 04:29:22,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:22,016 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:22,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:29:22,017 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1117172267, now seen corresponding path program 1 times [2020-09-25 04:29:22,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:22,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755323918] [2020-09-25 04:29:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:22,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:22,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:22,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:23,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:27,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:27,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 04:29:27,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:29:27,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 04:29:27,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:27,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 04:29:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 04:29:27,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:29:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:27,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:27,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:27,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:29:27,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:27,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:29:27,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:27,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:27,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:27,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:29:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:27,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:27,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:27,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:29:27,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:27,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:29:27,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:27,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:27,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:27,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 04:29:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:27,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:27,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:29:27,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:27,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:29:27,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:27,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:29:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:29:27,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:29:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:27,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-25 04:29:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:27,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:27,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:27,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 04:29:27,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 04:29:27,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:27,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:27,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:29:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:29:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 04:29:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:29:27,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-09-25 04:29:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:27,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:29:27,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:29:27,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:29:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:29:27,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:29:27,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:29:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:29:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 04:29:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:29:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:29:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 121 proven. 13 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-25 04:29:27,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755323918] [2020-09-25 04:29:27,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:29:27,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:29:27,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112313121] [2020-09-25 04:29:27,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:29:27,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:29:27,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:29:27,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:29:27,372 INFO L87 Difference]: Start difference. First operand 4183 states and 4777 transitions. Second operand 7 states. [2020-09-25 04:29:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:29:29,533 INFO L93 Difference]: Finished difference Result 9603 states and 11321 transitions. [2020-09-25 04:29:29,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:29:29,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-25 04:29:29,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:29:29,559 INFO L225 Difference]: With dead ends: 9603 [2020-09-25 04:29:29,559 INFO L226 Difference]: Without dead ends: 5452 [2020-09-25 04:29:29,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:29:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5452 states. [2020-09-25 04:29:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5452 to 5291. [2020-09-25 04:29:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5291 states. [2020-09-25 04:29:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 5934 transitions. [2020-09-25 04:29:29,726 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 5934 transitions. Word has length 211 [2020-09-25 04:29:29,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:29:29,727 INFO L479 AbstractCegarLoop]: Abstraction has 5291 states and 5934 transitions. [2020-09-25 04:29:29,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:29:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 5934 transitions. [2020-09-25 04:29:29,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 04:29:29,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:29:29,747 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:29:29,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:29:29,747 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:29:29,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:29:29,748 INFO L82 PathProgramCache]: Analyzing trace with hash -862085411, now seen corresponding path program 1 times [2020-09-25 04:29:29,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:29:29,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069661523] [2020-09-25 04:29:29,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:29:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:29:29,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:29:30,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking...