/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/reducercommutativity/max10-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:13:52,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:13:52,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:13:52,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:13:52,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:13:52,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:13:52,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:13:52,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:13:52,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:13:52,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:13:52,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:13:52,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:13:52,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:13:52,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:13:53,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:13:53,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:13:53,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:13:53,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:13:53,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:13:53,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:13:53,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:13:53,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:13:53,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:13:53,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:13:53,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:13:53,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:13:53,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:13:53,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:13:53,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:13:53,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:13:53,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:13:53,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:13:53,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:13:53,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:13:53,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:13:53,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:13:53,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:13:53,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:13:53,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:13:53,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:13:53,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:13:53,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 12:13:53,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:13:53,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:13:53,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:13:53,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:13:53,070 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:13:53,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:13:53,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:13:53,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:13:53,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:13:53,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:13:53,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:13:53,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:13:53,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:13:53,072 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:13:53,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:13:53,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:13:53,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:13:53,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:13:53,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:13:53,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:13:53,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:13:53,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:13:53,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:13:53,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:13:53,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:13:53,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:13:53,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:13:53,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:13:53,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:13:53,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:13:53,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:13:53,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:13:53,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:13:53,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:13:53,560 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:13:53,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-29 12:13:53,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d9f81864/acf2b464fe79431e9b8ce0f504f8b5d4/FLAG10f87195a [2020-10-29 12:13:54,395 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:13:54,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/reducercommutativity/max10-1.i [2020-10-29 12:13:54,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d9f81864/acf2b464fe79431e9b8ce0f504f8b5d4/FLAG10f87195a [2020-10-29 12:13:54,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d9f81864/acf2b464fe79431e9b8ce0f504f8b5d4 [2020-10-29 12:13:54,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:13:54,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:13:54,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:13:54,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:13:54,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:13:54,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:13:54" (1/1) ... [2020-10-29 12:13:54,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4047c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:54, skipping insertion in model container [2020-10-29 12:13:54,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:13:54" (1/1) ... [2020-10-29 12:13:54,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:13:54,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:13:54,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:13:54,977 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:13:55,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:13:55,038 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:13:55,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55 WrapperNode [2020-10-29 12:13:55,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:13:55,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:13:55,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:13:55,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:13:55,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... [2020-10-29 12:13:55,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:13:55,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:13:55,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:13:55,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:13:55,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:13:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:13:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:13:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:13:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-29 12:13:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:13:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:13:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:13:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 12:13:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 12:13:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:13:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:13:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 12:13:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-29 12:13:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:13:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:13:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:13:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:13:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:13:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:13:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:13:55,922 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:13:55,923 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 12:13:55,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:13:55 BoogieIcfgContainer [2020-10-29 12:13:55,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:13:55,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:13:55,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:13:55,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:13:55,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:13:54" (1/3) ... [2020-10-29 12:13:55,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8e9eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:13:55, skipping insertion in model container [2020-10-29 12:13:55,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:13:55" (2/3) ... [2020-10-29 12:13:55,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8e9eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:13:55, skipping insertion in model container [2020-10-29 12:13:55,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:13:55" (3/3) ... [2020-10-29 12:13:55,935 INFO L111 eAbstractionObserver]: Analyzing ICFG max10-1.i [2020-10-29 12:13:55,950 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:13:55,955 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:13:55,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:13:55,998 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:13:55,998 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:13:55,998 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:13:55,999 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:13:55,999 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:13:55,999 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:13:55,999 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:13:55,999 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:13:56,018 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-29 12:13:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-29 12:13:56,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:13:56,027 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:13:56,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:13:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:13:56,035 INFO L82 PathProgramCache]: Analyzing trace with hash -122162658, now seen corresponding path program 1 times [2020-10-29 12:13:56,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:13:56,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102744328] [2020-10-29 12:13:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:13:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:13:56,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:56,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:56,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:56,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:56,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:56,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:13:58,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-29 12:13:58,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:13:58,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2003 [2020-10-29 12:13:58,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:13:58,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:13:58,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:13:58,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:13:58,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 12:13:58,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:13:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:13:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:13:58,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:13:58,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:13:58,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:13:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:13:58,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:13:58,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:13:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:13:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:13:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:13:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:13:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:13:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:13:58,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:13:58,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:13:58,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:13:58,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:13:58,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:13:58,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:13:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:13:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:13:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:13:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:13:58,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-29 12:13:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:13:58,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:13:58,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:13:58,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:13:58,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 12:13:58,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:13:58,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:13:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:13:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:13:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:13:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:13:58,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 12:13:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:13:58,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:58,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:13:58,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:13:58,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:13:58,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 12:13:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:13:58,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:13:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:13:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:13:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:13:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:13:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:13:59,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102744328] [2020-10-29 12:13:59,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:13:59,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:13:59,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648110915] [2020-10-29 12:13:59,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:13:59,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:13:59,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:13:59,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:13:59,050 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 11 states. [2020-10-29 12:13:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:13:59,754 INFO L93 Difference]: Finished difference Result 93 states and 138 transitions. [2020-10-29 12:13:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:13:59,757 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-10-29 12:13:59,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:13:59,769 INFO L225 Difference]: With dead ends: 93 [2020-10-29 12:13:59,769 INFO L226 Difference]: Without dead ends: 54 [2020-10-29 12:13:59,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:13:59,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-29 12:13:59,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 41. [2020-10-29 12:13:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-29 12:13:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2020-10-29 12:13:59,850 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 34 [2020-10-29 12:13:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:13:59,851 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2020-10-29 12:13:59,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:13:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2020-10-29 12:13:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 12:13:59,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:13:59,864 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:13:59,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:13:59,865 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:13:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:13:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash 76835244, now seen corresponding path program 1 times [2020-10-29 12:13:59,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:13:59,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271459958] [2020-10-29 12:13:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:13:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:13:59,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:00,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:01,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 12:14:01,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:14:01,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1524 [2020-10-29 12:14:01,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:01,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:14:01,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:14:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:14:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:01,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:01,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:01,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:01,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:01,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:14:01,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:01,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:01,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:01,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:01,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:01,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:14:01,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:01,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:14:01,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:01,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:14:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:01,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:14:01,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:01,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 12:14:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:01,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:01,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:14:01,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:01,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:14:01,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:01,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:01,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:14:01,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:14:01,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:14:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:01,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:01,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:14:01,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:14:01,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:01,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:14:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:14:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:14:01,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271459958] [2020-10-29 12:14:01,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:01,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 12:14:01,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015639970] [2020-10-29 12:14:01,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 12:14:01,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:01,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 12:14:01,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 12:14:01,619 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 5 states. [2020-10-29 12:14:01,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:01,871 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2020-10-29 12:14:01,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 12:14:01,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-10-29 12:14:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:01,873 INFO L225 Difference]: With dead ends: 70 [2020-10-29 12:14:01,873 INFO L226 Difference]: Without dead ends: 38 [2020-10-29 12:14:01,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:14:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-29 12:14:01,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-10-29 12:14:01,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-29 12:14:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-10-29 12:14:01,886 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 38 [2020-10-29 12:14:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:01,886 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-10-29 12:14:01,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 12:14:01,886 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2020-10-29 12:14:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 12:14:01,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:01,889 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:01,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:14:01,889 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:01,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2055205671, now seen corresponding path program 2 times [2020-10-29 12:14:01,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:01,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793134982] [2020-10-29 12:14:01,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:01,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:02,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:03,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:06,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 12:14:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:14:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 12:14:06,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:06,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:14:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:14:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 12:14:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:14:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:07,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:07,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:07,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:14:07,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:07,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:07,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:07,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:07,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:07,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:07,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:14:07,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:07,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 12:14:07,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:07,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:14:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:07,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:14:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:07,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 12:14:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:07,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:07,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:14:07,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:14:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-29 12:14:07,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:07,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:14:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:14:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 12:14:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:07,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:07,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:07,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:14:07,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 12:14:07,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:07,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:14:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:14:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-29 12:14:08,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793134982] [2020-10-29 12:14:08,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:08,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 12:14:08,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704923138] [2020-10-29 12:14:08,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:14:08,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:08,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:14:08,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:14:08,126 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 14 states. [2020-10-29 12:14:08,691 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-10-29 12:14:08,866 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-29 12:14:09,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:09,786 INFO L93 Difference]: Finished difference Result 98 states and 122 transitions. [2020-10-29 12:14:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:14:09,787 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2020-10-29 12:14:09,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:09,789 INFO L225 Difference]: With dead ends: 98 [2020-10-29 12:14:09,789 INFO L226 Difference]: Without dead ends: 74 [2020-10-29 12:14:09,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:14:09,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-29 12:14:09,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2020-10-29 12:14:09,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-29 12:14:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2020-10-29 12:14:09,805 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 58 [2020-10-29 12:14:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:09,806 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2020-10-29 12:14:09,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:14:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2020-10-29 12:14:09,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 12:14:09,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:09,811 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:09,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:14:09,811 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:09,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:09,815 INFO L82 PathProgramCache]: Analyzing trace with hash -595392793, now seen corresponding path program 1 times [2020-10-29 12:14:09,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:09,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307946917] [2020-10-29 12:14:09,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:09,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:09,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:09,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:09,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:10,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 12:14:14,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:14:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 12:14:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:14,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:14:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:14:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:14:14,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:14,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:14,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:14,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:14,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:14,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:14,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:14:14,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:14,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:14,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:14,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:14,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:14,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:14,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:14,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:14,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:14,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:15,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 12:14:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:15,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:15,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:14:15,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:15,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:14:15,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:15,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 12:14:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:15,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:15,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:14:15,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:15,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:14:15,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:15,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:14:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:15,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:14:15,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 12:14:15,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307946917] [2020-10-29 12:14:15,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:15,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 12:14:15,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724229859] [2020-10-29 12:14:15,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 12:14:15,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:15,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 12:14:15,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:14:15,104 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 6 states. [2020-10-29 12:14:15,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:15,451 INFO L93 Difference]: Finished difference Result 137 states and 183 transitions. [2020-10-29 12:14:15,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 12:14:15,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-29 12:14:15,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:15,456 INFO L225 Difference]: With dead ends: 137 [2020-10-29 12:14:15,456 INFO L226 Difference]: Without dead ends: 80 [2020-10-29 12:14:15,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:14:15,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-29 12:14:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2020-10-29 12:14:15,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-29 12:14:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2020-10-29 12:14:15,488 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 58 [2020-10-29 12:14:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:15,488 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2020-10-29 12:14:15,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 12:14:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2020-10-29 12:14:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 12:14:15,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:15,494 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:15,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:14:15,499 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:15,499 INFO L82 PathProgramCache]: Analyzing trace with hash 2060222850, now seen corresponding path program 2 times [2020-10-29 12:14:15,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:15,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980639776] [2020-10-29 12:14:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:15,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:15,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:16,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:20,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 12:14:20,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:14:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 12:14:20,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:20,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:20,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:14:20,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:14:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:14:20,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:20,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:20,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:20,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:20,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:20,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:14:20,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:20,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:20,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:20,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:20,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:20,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:20,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 12:14:20,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 12:14:20,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:20,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:14:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:14:20,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:14:20,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 12:14:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:20,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:20,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 12:14:20,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 12:14:20,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:20,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:14:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:14:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 12:14:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:20,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:20,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:20,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 12:14:20,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 12:14:20,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:20,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:14:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 12:14:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 90 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-29 12:14:20,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980639776] [2020-10-29 12:14:20,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:20,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 12:14:20,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9636695] [2020-10-29 12:14:20,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:14:20,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:20,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:14:20,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:14:20,819 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 7 states. [2020-10-29 12:14:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:21,202 INFO L93 Difference]: Finished difference Result 153 states and 203 transitions. [2020-10-29 12:14:21,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:14:21,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-29 12:14:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:21,206 INFO L225 Difference]: With dead ends: 153 [2020-10-29 12:14:21,206 INFO L226 Difference]: Without dead ends: 88 [2020-10-29 12:14:21,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:14:21,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-29 12:14:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-10-29 12:14:21,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-29 12:14:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 103 transitions. [2020-10-29 12:14:21,236 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 103 transitions. Word has length 70 [2020-10-29 12:14:21,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:21,239 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 103 transitions. [2020-10-29 12:14:21,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:14:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2020-10-29 12:14:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 12:14:21,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:21,241 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:21,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:14:21,242 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:21,246 INFO L82 PathProgramCache]: Analyzing trace with hash 538831773, now seen corresponding path program 3 times [2020-10-29 12:14:21,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:21,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507881503] [2020-10-29 12:14:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:21,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:21,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:21,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:23,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:25,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:26,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 12:14:26,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:14:26,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 12:14:26,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:26,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:14:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-29 12:14:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:14:26,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:26,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:26,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:26,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:26,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:26,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:14:26,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:26,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:26,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:26,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:26,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:26,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:26,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 12:14:26,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 12:14:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:26,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:14:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 12:14:26,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 12:14:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:26,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:26,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 12:14:26,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 12:14:26,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:26,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:14:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 12:14:26,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:14:26,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 12:14:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:26,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 12:14:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 12:14:26,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:26,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:14:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 12:14:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:26,975 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 84 proven. 168 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-29 12:14:26,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507881503] [2020-10-29 12:14:26,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:26,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 12:14:26,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348583516] [2020-10-29 12:14:26,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:14:26,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:26,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:14:26,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:14:26,979 INFO L87 Difference]: Start difference. First operand 82 states and 103 transitions. Second operand 11 states. [2020-10-29 12:14:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:27,483 INFO L93 Difference]: Finished difference Result 169 states and 223 transitions. [2020-10-29 12:14:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:14:27,483 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-10-29 12:14:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:27,485 INFO L225 Difference]: With dead ends: 169 [2020-10-29 12:14:27,485 INFO L226 Difference]: Without dead ends: 96 [2020-10-29 12:14:27,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:14:27,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-29 12:14:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2020-10-29 12:14:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 12:14:27,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 113 transitions. [2020-10-29 12:14:27,506 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 113 transitions. Word has length 82 [2020-10-29 12:14:27,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:27,507 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 113 transitions. [2020-10-29 12:14:27,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:14:27,507 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 113 transitions. [2020-10-29 12:14:27,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 12:14:27,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:27,508 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:27,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:14:27,509 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:27,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1308034360, now seen corresponding path program 4 times [2020-10-29 12:14:27,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:27,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013543048] [2020-10-29 12:14:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:27,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:27,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:27,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:30,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:30,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:32,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:32,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:32,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:32,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 12:14:32,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 12:14:32,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 12:14:32,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:32,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 12:14:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:14:32,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 12:14:32,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:32,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:32,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:32,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:32,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:14:32,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:32,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:32,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:32,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:33,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:33,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 12:14:33,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-29 12:14:33,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:33,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:14:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:14:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:33,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:14:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:33,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:33,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:33,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 12:14:33,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:14:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-29 12:14:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:33,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:14:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 12:14:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:33,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 12:14:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:33,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:33,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:33,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 12:14:33,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 12:14:33,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:33,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:14:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:14:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 159 proven. 249 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-29 12:14:33,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013543048] [2020-10-29 12:14:33,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:33,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 12:14:33,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599237967] [2020-10-29 12:14:33,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:14:33,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:33,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:14:33,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:14:33,687 INFO L87 Difference]: Start difference. First operand 90 states and 113 transitions. Second operand 13 states. [2020-10-29 12:14:34,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:34,398 INFO L93 Difference]: Finished difference Result 185 states and 243 transitions. [2020-10-29 12:14:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 12:14:34,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-29 12:14:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:34,401 INFO L225 Difference]: With dead ends: 185 [2020-10-29 12:14:34,401 INFO L226 Difference]: Without dead ends: 104 [2020-10-29 12:14:34,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:14:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-29 12:14:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2020-10-29 12:14:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-29 12:14:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2020-10-29 12:14:34,418 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 94 [2020-10-29 12:14:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:34,418 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2020-10-29 12:14:34,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:14:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2020-10-29 12:14:34,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-29 12:14:34,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:34,420 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 16, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:34,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:14:34,421 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:34,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1001885267, now seen corresponding path program 5 times [2020-10-29 12:14:34,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:34,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069393093] [2020-10-29 12:14:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:34,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:34,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:34,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:34,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:39,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:39,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 12:14:39,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:14:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:14:39,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:39,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:39,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-29 12:14:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:14:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 12:14:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:39,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:39,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:39,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:39,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:39,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:14:39,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:39,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:39,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:39,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:39,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:39,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:39,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:39,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:39,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 12:14:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:40,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:14:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:40,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:40,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:40,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 12:14:40,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 12:14:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:40,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:14:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:40,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:40,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:40,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:40,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 12:14:40,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-29 12:14:40,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:40,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:14:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 12:14:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:40,321 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 198 proven. 396 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-29 12:14:40,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069393093] [2020-10-29 12:14:40,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:40,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 12:14:40,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903752674] [2020-10-29 12:14:40,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:14:40,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:40,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:14:40,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:14:40,323 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand 12 states. [2020-10-29 12:14:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:41,038 INFO L93 Difference]: Finished difference Result 201 states and 263 transitions. [2020-10-29 12:14:41,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 12:14:41,040 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2020-10-29 12:14:41,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:41,042 INFO L225 Difference]: With dead ends: 201 [2020-10-29 12:14:41,042 INFO L226 Difference]: Without dead ends: 112 [2020-10-29 12:14:41,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:14:41,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-29 12:14:41,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-10-29 12:14:41,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-29 12:14:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 133 transitions. [2020-10-29 12:14:41,057 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 133 transitions. Word has length 106 [2020-10-29 12:14:41,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:41,057 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 133 transitions. [2020-10-29 12:14:41,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:14:41,058 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 133 transitions. [2020-10-29 12:14:41,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-29 12:14:41,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:41,059 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 19, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:41,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:14:41,060 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:41,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:41,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1184843502, now seen corresponding path program 6 times [2020-10-29 12:14:41,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:41,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754882589] [2020-10-29 12:14:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:41,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:41,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:41,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:41,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:46,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 12:14:46,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:14:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 12:14:46,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:46,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 12:14:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:14:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 12:14:46,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:46,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:46,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:46,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:46,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:14:46,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:46,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:46,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:46,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:46,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:46,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:46,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 12:14:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:46,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:14:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:46,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:46,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 12:14:46,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 12:14:46,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:46,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:14:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 12:14:46,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:46,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 12:14:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:46,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:46,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:47,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 273 proven. 546 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-29 12:14:47,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754882589] [2020-10-29 12:14:47,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:47,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 12:14:47,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238864167] [2020-10-29 12:14:47,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:14:47,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:47,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:14:47,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:14:47,074 INFO L87 Difference]: Start difference. First operand 106 states and 133 transitions. Second operand 13 states. [2020-10-29 12:14:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:47,909 INFO L93 Difference]: Finished difference Result 217 states and 283 transitions. [2020-10-29 12:14:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 12:14:47,916 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 118 [2020-10-29 12:14:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:47,918 INFO L225 Difference]: With dead ends: 217 [2020-10-29 12:14:47,918 INFO L226 Difference]: Without dead ends: 120 [2020-10-29 12:14:47,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:14:47,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-29 12:14:47,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2020-10-29 12:14:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 12:14:47,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2020-10-29 12:14:47,933 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 118 [2020-10-29 12:14:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:47,935 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2020-10-29 12:14:47,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:14:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-10-29 12:14:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-29 12:14:47,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:47,937 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 22, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:47,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:14:47,938 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:47,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:47,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1640886025, now seen corresponding path program 7 times [2020-10-29 12:14:47,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:47,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465322723] [2020-10-29 12:14:47,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:47,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:48,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:48,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:48,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:48,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:49,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:52,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:52,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:14:52,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 12:14:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:53,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:53,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:53,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:53,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:53,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:53,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:14:53,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:53,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:53,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:53,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:53,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:53,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 12:14:53,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 12:14:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:54,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 12:14:54,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:54,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-29 12:14:54,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:54,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:54,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:14:54,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:54,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 12:14:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:14:54,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:14:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:54,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:54,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:54,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:54,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 12:14:54,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:54,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 12:14:54,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:54,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:54,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:14:54,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:14:54,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 12:14:54,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 360 proven. 720 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-29 12:14:54,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465322723] [2020-10-29 12:14:54,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:14:54,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 12:14:54,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261694365] [2020-10-29 12:14:54,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:14:54,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:14:54,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:14:54,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:14:54,313 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand 14 states. [2020-10-29 12:14:55,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:14:55,109 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2020-10-29 12:14:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:14:55,110 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 130 [2020-10-29 12:14:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:14:55,111 INFO L225 Difference]: With dead ends: 233 [2020-10-29 12:14:55,112 INFO L226 Difference]: Without dead ends: 128 [2020-10-29 12:14:55,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:14:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-29 12:14:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2020-10-29 12:14:55,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-29 12:14:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2020-10-29 12:14:55,127 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 130 [2020-10-29 12:14:55,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:14:55,127 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2020-10-29 12:14:55,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:14:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2020-10-29 12:14:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-29 12:14:55,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:14:55,130 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 25, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:14:55,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:14:55,131 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:14:55,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:14:55,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2042411356, now seen corresponding path program 8 times [2020-10-29 12:14:55,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:14:55,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052882166] [2020-10-29 12:14:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:14:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:55,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:55,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:55,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:55,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:55,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:56,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:57,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:57,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:57,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:00,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:00,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-29 12:15:00,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 12:15:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:15:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:00,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:00,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:15:00,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:15:00,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:15:00,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:00,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:15:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:15:00,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:15:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:00,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:15:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:00,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:00,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:15:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:15:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-29 12:15:00,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:15:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:01,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:01,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:01,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:01,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 12:15:01,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 12:15:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:01,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 12:15:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:01,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:01,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:02,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:02,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 12:15:02,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:15:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-29 12:15:02,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:02,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 12:15:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:15:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 12:15:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 159 proven. 1220 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-29 12:15:02,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052882166] [2020-10-29 12:15:02,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:15:02,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 12:15:02,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106415966] [2020-10-29 12:15:02,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 12:15:02,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:15:02,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 12:15:02,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:15:02,095 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand 22 states. [2020-10-29 12:15:02,917 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-29 12:15:03,090 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-29 12:15:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:15:05,886 INFO L93 Difference]: Finished difference Result 410 states and 564 transitions. [2020-10-29 12:15:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 12:15:05,887 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 142 [2020-10-29 12:15:05,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:15:05,891 INFO L225 Difference]: With dead ends: 410 [2020-10-29 12:15:05,891 INFO L226 Difference]: Without dead ends: 297 [2020-10-29 12:15:05,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=655, Invalid=1997, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 12:15:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-10-29 12:15:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 130. [2020-10-29 12:15:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-29 12:15:05,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 163 transitions. [2020-10-29 12:15:05,916 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 163 transitions. Word has length 142 [2020-10-29 12:15:05,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:15:05,917 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 163 transitions. [2020-10-29 12:15:05,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 12:15:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 163 transitions. [2020-10-29 12:15:05,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-29 12:15:05,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:15:05,920 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 28, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:15:05,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:15:05,920 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:15:05,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:15:05,921 INFO L82 PathProgramCache]: Analyzing trace with hash 585043391, now seen corresponding path program 9 times [2020-10-29 12:15:05,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:15:05,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025542607] [2020-10-29 12:15:05,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:15:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:05,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:05,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:06,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:06,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:06,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:07,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:10,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:10,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 12:15:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:11,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:15:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:15:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:11,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:15:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:11,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:11,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:11,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:12,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:12,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1450 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 12:15:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:14,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:15:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:14,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:14,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:15,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:15:15,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:15:15,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-10-29 12:15:15,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:15,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:15:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:15:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:15:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:15,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:15:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:15:15,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:15,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:15,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:15:15,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:15:15,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:15:15,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:15:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:15:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 521 proven. 1003 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2020-10-29 12:15:16,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025542607] [2020-10-29 12:15:16,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:15:16,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-29 12:15:16,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625172858] [2020-10-29 12:15:16,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-29 12:15:16,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:15:16,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-29 12:15:16,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1610, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 12:15:16,828 INFO L87 Difference]: Start difference. First operand 130 states and 163 transitions. Second operand 43 states. [2020-10-29 12:15:17,825 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-29 12:15:18,025 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-29 12:15:18,236 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-10-29 12:15:18,554 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-29 12:15:18,724 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 12:15:19,007 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-10-29 12:15:19,332 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-10-29 12:15:19,532 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:15:19,720 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 12:15:20,687 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-29 12:15:20,912 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-29 12:15:21,220 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-29 12:15:21,479 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-29 12:15:21,879 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 12:15:23,322 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-29 12:15:23,483 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 12:15:23,790 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-29 12:15:24,048 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-29 12:15:24,233 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-29 12:15:24,415 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 12:15:24,907 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 12:15:25,539 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-29 12:15:25,707 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:15:26,019 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-29 12:15:26,293 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-29 12:15:26,486 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-29 12:15:26,686 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 12:15:27,846 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-10-29 12:15:28,298 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-29 12:15:28,564 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-10-29 12:15:28,767 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-29 12:15:28,963 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 12:15:30,057 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-29 12:15:30,534 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-29 12:15:30,825 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-29 12:15:31,040 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-29 12:15:31,244 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 12:15:31,760 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 12:15:32,461 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2020-10-29 12:15:32,644 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:15:33,035 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2020-10-29 12:15:33,304 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-10-29 12:15:33,517 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-29 12:15:33,722 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 12:15:33,988 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-29 12:15:34,342 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 12:15:34,602 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2020-10-29 12:15:35,155 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2020-10-29 12:15:35,459 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-29 12:15:35,849 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2020-10-29 12:15:36,181 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-10-29 12:15:36,510 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-10-29 12:15:36,826 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-29 12:15:37,125 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-29 12:15:37,324 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-10-29 12:15:37,611 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-10-29 12:15:37,911 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-10-29 12:15:38,254 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-29 12:15:38,566 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-29 12:15:38,783 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:39,037 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-29 12:15:39,246 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:15:39,465 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:15:39,698 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-29 12:15:39,929 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:15:40,138 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-29 12:15:41,866 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-29 12:15:42,062 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-29 12:15:42,325 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-29 12:15:42,641 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-29 12:15:42,923 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:15:43,226 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-29 12:15:43,576 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-29 12:15:43,886 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:15:44,182 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-29 12:15:44,410 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-29 12:15:44,636 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:15:44,915 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-29 12:15:45,140 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-29 12:15:45,391 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 12:15:45,671 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-29 12:15:45,866 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-29 12:15:46,113 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-29 12:15:46,447 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-29 12:15:46,718 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-29 12:15:46,915 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:47,201 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:15:47,474 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-29 12:15:47,688 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:47,900 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:48,200 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:15:48,419 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:48,628 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-29 12:15:48,836 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-29 12:15:49,121 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-29 12:15:49,351 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:15:49,737 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-29 12:15:50,063 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-29 12:15:50,330 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 12:15:50,594 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:15:50,879 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-29 12:15:51,095 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:51,328 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-29 12:15:51,629 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:15:51,848 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:52,086 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:15:52,381 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-29 12:15:52,619 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:15:53,016 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-29 12:15:53,319 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-29 12:15:53,580 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 12:15:53,850 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:15:54,157 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-29 12:15:54,382 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:54,611 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-29 12:15:54,922 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-29 12:15:55,156 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:15:55,391 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:15:55,674 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-29 12:15:55,921 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:15:56,357 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-29 12:15:56,704 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-29 12:15:57,004 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-29 12:15:57,303 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:15:57,604 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-29 12:15:57,831 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-29 12:15:58,079 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-29 12:15:58,397 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:15:58,630 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-29 12:15:58,889 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-29 12:15:59,210 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-29 12:15:59,472 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-29 12:15:59,892 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-29 12:16:00,250 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-29 12:16:00,569 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-29 12:16:00,868 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-29 12:16:01,171 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-10-29 12:16:01,408 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:16:01,669 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-29 12:16:01,989 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:16:02,212 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:16:02,481 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:16:02,826 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2020-10-29 12:16:03,089 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:16:03,536 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-10-29 12:16:03,902 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-29 12:16:04,206 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 12:16:04,499 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:16:04,809 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-29 12:16:05,043 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:16:05,318 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-29 12:16:05,666 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-29 12:16:05,935 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:16:06,302 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-29 12:16:06,598 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-29 12:16:07,106 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2020-10-29 12:16:07,528 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-10-29 12:16:07,928 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-10-29 12:16:08,276 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-29 12:16:08,633 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-10-29 12:16:08,901 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:16:09,203 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-29 12:16:09,529 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-29 12:16:10,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:16:10,518 INFO L93 Difference]: Finished difference Result 1833 states and 2576 transitions. [2020-10-29 12:16:10,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2020-10-29 12:16:10,520 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 154 [2020-10-29 12:16:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:16:10,537 INFO L225 Difference]: With dead ends: 1833 [2020-10-29 12:16:10,538 INFO L226 Difference]: Without dead ends: 1827 [2020-10-29 12:16:10,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25614 ImplicationChecksByTransitivity, 51.2s TimeCoverageRelationStatistics Valid=9002, Invalid=60958, Unknown=0, NotChecked=0, Total=69960 [2020-10-29 12:16:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2020-10-29 12:16:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1066. [2020-10-29 12:16:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-29 12:16:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1404 transitions. [2020-10-29 12:16:10,750 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1404 transitions. Word has length 154 [2020-10-29 12:16:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:16:10,751 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1404 transitions. [2020-10-29 12:16:10,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-29 12:16:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1404 transitions. [2020-10-29 12:16:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-29 12:16:10,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:16:10,767 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 27, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:16:10,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 12:16:10,768 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:16:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:16:10,768 INFO L82 PathProgramCache]: Analyzing trace with hash 843208829, now seen corresponding path program 10 times [2020-10-29 12:16:10,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:16:10,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941320681] [2020-10-29 12:16:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:16:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:10,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:11,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-29 12:16:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:16:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-29 12:16:11,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:11,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:16:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 12:16:11,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:16:11,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:16:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:11,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:16:11,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:16:11,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:11,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:11,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:16:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:11,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:16:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:16:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:11,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:11,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:16:11,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:11,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 12:16:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1845 trivial. 0 not checked. [2020-10-29 12:16:11,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941320681] [2020-10-29 12:16:11,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:16:11,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 12:16:11,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816435590] [2020-10-29 12:16:11,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 12:16:11,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:16:11,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 12:16:11,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 12:16:11,348 INFO L87 Difference]: Start difference. First operand 1066 states and 1404 transitions. Second operand 4 states. [2020-10-29 12:16:11,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:16:11,540 INFO L93 Difference]: Finished difference Result 1583 states and 2053 transitions. [2020-10-29 12:16:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 12:16:11,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-29 12:16:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:16:11,548 INFO L225 Difference]: With dead ends: 1583 [2020-10-29 12:16:11,548 INFO L226 Difference]: Without dead ends: 559 [2020-10-29 12:16:11,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 12:16:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-10-29 12:16:11,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 112. [2020-10-29 12:16:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-29 12:16:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2020-10-29 12:16:11,581 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 154 [2020-10-29 12:16:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:16:11,582 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2020-10-29 12:16:11,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 12:16:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2020-10-29 12:16:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 12:16:11,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:16:11,584 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:16:11,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 12:16:11,585 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:16:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:16:11,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1945815263, now seen corresponding path program 1 times [2020-10-29 12:16:11,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:16:11,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373863868] [2020-10-29 12:16:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:16:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:11,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:11,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:12,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:12,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:14,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:16,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:16,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 12:16:16,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:16:16,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 12:16:16,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:16,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 12:16:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:16:16,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 12:16:16,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:16,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:16:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:16,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:16,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:16:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:16,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:17,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:17,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:17,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:16:17,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-29 12:16:17,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:17,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:16:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 12:16:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:17,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:16:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:17,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:17,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:17,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:16:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 12:16:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:17,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:17,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:17,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:17,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:17,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:16:17,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-29 12:16:17,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:17,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:16:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:16:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:16:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 736 proven. 673 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2020-10-29 12:16:18,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373863868] [2020-10-29 12:16:18,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:16:18,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 12:16:18,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142138590] [2020-10-29 12:16:18,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 12:16:18,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:16:18,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 12:16:18,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:16:18,631 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand 20 states. [2020-10-29 12:16:19,701 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-29 12:16:20,215 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-29 12:16:20,408 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-29 12:16:20,804 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-10-29 12:16:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:16:21,307 INFO L93 Difference]: Finished difference Result 186 states and 226 transitions. [2020-10-29 12:16:21,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:16:21,308 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 156 [2020-10-29 12:16:21,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:16:21,311 INFO L225 Difference]: With dead ends: 186 [2020-10-29 12:16:21,311 INFO L226 Difference]: Without dead ends: 180 [2020-10-29 12:16:21,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 12:16:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-29 12:16:21,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 152. [2020-10-29 12:16:21,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-29 12:16:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 192 transitions. [2020-10-29 12:16:21,333 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 192 transitions. Word has length 156 [2020-10-29 12:16:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:16:21,334 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 192 transitions. [2020-10-29 12:16:21,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 12:16:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 192 transitions. [2020-10-29 12:16:21,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 12:16:21,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:16:21,337 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 28, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:16:21,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 12:16:21,337 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:16:21,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:16:21,338 INFO L82 PathProgramCache]: Analyzing trace with hash 574007965, now seen corresponding path program 2 times [2020-10-29 12:16:21,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:16:21,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809729287] [2020-10-29 12:16:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:16:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:21,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:21,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:22,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:22,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:23,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:26,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 12:16:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:16:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:26,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:26,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:26,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:16:26,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:16:26,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:26,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:26,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:26,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:16:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:26,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:26,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:27,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:27,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:27,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:16:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-29 12:16:27,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:27,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:16:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 12:16:27,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:27,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:16:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:27,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:27,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:27,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:16:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:27,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 12:16:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:27,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:27,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:27,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:16:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:16:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:16:28,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 424 proven. 1017 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2020-10-29 12:16:28,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809729287] [2020-10-29 12:16:28,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:16:28,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 12:16:28,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745904101] [2020-10-29 12:16:28,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 12:16:28,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:16:28,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 12:16:28,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:16:28,537 INFO L87 Difference]: Start difference. First operand 152 states and 192 transitions. Second operand 22 states. [2020-10-29 12:16:30,297 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-29 12:16:30,480 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-10-29 12:16:30,715 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-10-29 12:16:30,948 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-29 12:16:31,147 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-29 12:16:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:16:32,370 INFO L93 Difference]: Finished difference Result 345 states and 436 transitions. [2020-10-29 12:16:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 12:16:32,372 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 156 [2020-10-29 12:16:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:16:32,374 INFO L225 Difference]: With dead ends: 345 [2020-10-29 12:16:32,374 INFO L226 Difference]: Without dead ends: 208 [2020-10-29 12:16:32,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=190, Invalid=1532, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 12:16:32,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-29 12:16:32,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 198. [2020-10-29 12:16:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-29 12:16:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 254 transitions. [2020-10-29 12:16:32,402 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 254 transitions. Word has length 156 [2020-10-29 12:16:32,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:16:32,403 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 254 transitions. [2020-10-29 12:16:32,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 12:16:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 254 transitions. [2020-10-29 12:16:32,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-29 12:16:32,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:16:32,407 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 28, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:16:32,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 12:16:32,407 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:16:32,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:16:32,407 INFO L82 PathProgramCache]: Analyzing trace with hash -103572579, now seen corresponding path program 3 times [2020-10-29 12:16:32,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:16:32,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123968933] [2020-10-29 12:16:32,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:16:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:32,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:32,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:33,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:33,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:33,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:34,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:35,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:36,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:37,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:37,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 12:16:37,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 12:16:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:16:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:37,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:16:37,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:16:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:37,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:37,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:38,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:38,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1306 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 12:16:38,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:16:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:41,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:41,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:42,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1105 [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:16:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:16:42,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:16:42,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 12:16:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:42,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:42,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:42,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:16:42,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:16:42,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-10-29 12:16:42,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:42,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:42,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:16:42,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:16:42,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 12:16:42,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 504 proven. 1021 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2020-10-29 12:16:43,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123968933] [2020-10-29 12:16:43,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:16:43,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-29 12:16:43,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705822624] [2020-10-29 12:16:43,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-29 12:16:43,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:16:43,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-29 12:16:43,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 12:16:43,802 INFO L87 Difference]: Start difference. First operand 198 states and 254 transitions. Second operand 44 states. [2020-10-29 12:16:44,341 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-10-29 12:16:44,594 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-10-29 12:16:44,824 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-10-29 12:16:45,217 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-29 12:16:45,457 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-29 12:16:45,695 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-29 12:16:45,994 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-29 12:16:46,198 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 12:16:46,489 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-29 12:16:46,833 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-29 12:16:47,144 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-10-29 12:16:47,346 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:16:47,717 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-10-29 12:16:47,931 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 12:16:48,096 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-29 12:16:48,432 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 12:16:48,638 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-29 12:16:48,819 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-29 12:16:49,283 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-29 12:16:49,463 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-29 12:16:49,706 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-29 12:16:50,068 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-29 12:16:50,380 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-29 12:16:50,736 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-29 12:16:50,926 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:16:51,225 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-29 12:16:51,412 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 12:16:51,713 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:16:51,907 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 12:16:52,232 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:16:52,600 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 12:16:52,894 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 12:16:53,223 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-29 12:16:54,055 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-29 12:16:54,239 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 12:16:54,642 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-29 12:16:54,960 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-29 12:16:55,316 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-10-29 12:16:55,524 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 12:16:55,826 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:16:56,011 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 12:16:56,336 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 12:16:56,636 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 12:16:56,966 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-29 12:16:57,277 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-29 12:16:57,489 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:16:57,870 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-29 12:16:58,195 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-29 12:16:58,558 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:16:58,769 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 12:16:59,075 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-29 12:16:59,257 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 12:16:59,588 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 12:16:59,889 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-29 12:17:00,227 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-29 12:17:00,534 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-10-29 12:17:00,728 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:17:01,109 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-29 12:17:01,449 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-10-29 12:17:01,823 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-10-29 12:17:02,040 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 12:17:02,353 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:17:02,538 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 12:17:02,881 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:17:03,185 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 12:17:03,531 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-10-29 12:17:03,863 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-29 12:17:04,063 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 12:17:04,450 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-29 12:17:04,794 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-10-29 12:17:05,169 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-10-29 12:17:05,401 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 12:17:05,706 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:17:05,901 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 12:17:06,236 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 12:17:06,550 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 12:17:06,895 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-29 12:17:07,246 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-10-29 12:17:07,452 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:17:07,881 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2020-10-29 12:17:08,249 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-29 12:17:08,634 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:17:08,873 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 12:17:09,196 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-29 12:17:09,389 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-29 12:17:09,734 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 12:17:10,056 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-29 12:17:10,412 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-29 12:17:10,842 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2020-10-29 12:17:11,179 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-29 12:17:11,632 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2020-10-29 12:17:12,029 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2020-10-29 12:17:12,447 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-29 12:17:12,813 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-29 12:17:13,147 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-29 12:17:13,380 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-10-29 12:17:13,733 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-29 12:17:14,109 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-29 12:17:14,528 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-10-29 12:17:14,934 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-29 12:17:15,174 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:15,450 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-29 12:17:15,723 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-29 12:17:15,997 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-29 12:17:16,276 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-29 12:17:16,544 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-29 12:17:16,815 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-29 12:17:17,089 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-29 12:17:18,948 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-29 12:17:19,251 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-29 12:17:19,516 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-29 12:17:19,960 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-29 12:17:20,240 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-29 12:17:20,525 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-29 12:17:20,867 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-10-29 12:17:21,198 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:17:21,539 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-10-29 12:17:21,928 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-29 12:17:22,279 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-10-29 12:17:22,623 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-29 12:17:23,046 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2020-10-29 12:17:23,338 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 12:17:23,578 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-29 12:17:23,872 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-29 12:17:24,109 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-29 12:17:24,376 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-29 12:17:24,630 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-29 12:17:24,938 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-10-29 12:17:25,152 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-29 12:17:25,417 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-29 12:17:25,627 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-29 12:17:26,018 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-29 12:17:26,357 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-29 12:17:26,648 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-29 12:17:26,882 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:17:27,225 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:17:27,448 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:27,760 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-29 12:17:27,978 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:28,250 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-29 12:17:28,482 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:28,825 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-29 12:17:29,060 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:29,330 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-29 12:17:29,550 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-29 12:17:29,791 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-29 12:17:30,033 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-29 12:17:30,387 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-10-29 12:17:30,639 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:17:31,069 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-10-29 12:17:31,448 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-29 12:17:31,766 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-10-29 12:17:32,039 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-29 12:17:32,395 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-29 12:17:32,632 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:32,914 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-29 12:17:33,279 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-29 12:17:33,511 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-29 12:17:33,798 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-29 12:17:34,157 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-10-29 12:17:34,412 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-29 12:17:34,873 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-29 12:17:35,273 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-29 12:17:35,625 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64