/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:37:09,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:37:09,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:37:09,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:37:09,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:37:09,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:37:09,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:37:09,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:37:09,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:37:09,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:37:09,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:37:09,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:37:09,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:37:09,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:37:09,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:37:09,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:37:09,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:37:09,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:37:09,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:37:09,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:37:09,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:37:09,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:37:09,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:37:09,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:37:09,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:37:09,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:37:09,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:37:09,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:37:09,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:37:09,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:37:10,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:37:10,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:37:10,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:37:10,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:37:10,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:37:10,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:37:10,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:37:10,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:37:10,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:37:10,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:37:10,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:37:10,018 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 06:37:10,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:37:10,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:37:10,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:37:10,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:37:10,074 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:37:10,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:37:10,074 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:37:10,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:37:10,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:37:10,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:37:10,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:37:10,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:37:10,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:37:10,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:37:10,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:37:10,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:37:10,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:37:10,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:37:10,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:37:10,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:37:10,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:37:10,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:37:10,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:37:10,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:37:10,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:37:10,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:37:10,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:37:10,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:37:10,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:37:10,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:37:10,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:37:10,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:37:10,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:37:10,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:37:10,521 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:37:10,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-10-29 06:37:10,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e07cb9d2/fbd83373d2954bd391a6854ce8150840/FLAGa42d4ba9a [2020-10-29 06:37:11,402 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:37:11,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-10-29 06:37:11,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e07cb9d2/fbd83373d2954bd391a6854ce8150840/FLAGa42d4ba9a [2020-10-29 06:37:11,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e07cb9d2/fbd83373d2954bd391a6854ce8150840 [2020-10-29 06:37:11,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:37:11,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:37:11,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:37:11,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:37:11,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:37:11,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:37:11" (1/1) ... [2020-10-29 06:37:11,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4351d0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:11, skipping insertion in model container [2020-10-29 06:37:11,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:37:11" (1/1) ... [2020-10-29 06:37:11,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:37:11,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:37:12,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:37:12,287 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:37:12,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:37:12,469 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:37:12,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12 WrapperNode [2020-10-29 06:37:12,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:37:12,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:37:12,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:37:12,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:37:12,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (1/1) ... [2020-10-29 06:37:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:37:12,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:37:12,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:37:12,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:37:12,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (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 06:37:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:37:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:37:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:37:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:37:12,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:37:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:37:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:37:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:37:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:37:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:37:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:37:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:37:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:37:14,258 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:37:14,258 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:37:14,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:37:14 BoogieIcfgContainer [2020-10-29 06:37:14,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:37:14,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:37:14,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:37:14,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:37:14,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:37:11" (1/3) ... [2020-10-29 06:37:14,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab5ca28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:37:14, skipping insertion in model container [2020-10-29 06:37:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:37:12" (2/3) ... [2020-10-29 06:37:14,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab5ca28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:37:14, skipping insertion in model container [2020-10-29 06:37:14,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:37:14" (3/3) ... [2020-10-29 06:37:14,272 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label05.c [2020-10-29 06:37:14,285 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:37:14,291 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:37:14,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:37:14,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:37:14,338 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:37:14,339 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:37:14,339 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:37:14,339 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:37:14,339 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:37:14,339 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:37:14,339 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:37:14,366 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:37:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 06:37:14,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:14,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:14,379 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:14,387 INFO L82 PathProgramCache]: Analyzing trace with hash -28071030, now seen corresponding path program 1 times [2020-10-29 06:37:14,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:14,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883944587] [2020-10-29 06:37:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:15,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-29 06:37:15,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-29 06:37:15,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:15,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:37:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:37:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 06:37:15,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:37:15,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:15,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:15,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:15,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:15,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 06:37:15,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:15,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:37:15,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:15,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883944587] [2020-10-29 06:37:15,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:37:15,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 06:37:15,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427421940] [2020-10-29 06:37:15,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:15,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:15,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:15,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:15,529 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-29 06:37:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:17,500 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-29 06:37:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:17,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-29 06:37:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:17,518 INFO L225 Difference]: With dead ends: 586 [2020-10-29 06:37:17,519 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 06:37:17,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:37:17,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 06:37:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-29 06:37:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-29 06:37:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-29 06:37:17,615 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 59 [2020-10-29 06:37:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:17,616 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-29 06:37:17,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-29 06:37:17,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-29 06:37:17,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:17,623 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:17,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:37:17,624 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:17,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:17,625 INFO L82 PathProgramCache]: Analyzing trace with hash -863570233, now seen corresponding path program 1 times [2020-10-29 06:37:17,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:17,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710496227] [2020-10-29 06:37:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:17,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:18,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 06:37:18,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-10-29 06:37:18,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:18,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:37:18,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:37:18,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 06:37:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:19,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:19,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:19,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 06:37:19,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:19,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:19,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:37:19,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:37:19,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:19,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:37:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-29 06:37:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:19,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:37:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 06:37:19,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710496227] [2020-10-29 06:37:19,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:19,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:37:19,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034742481] [2020-10-29 06:37:19,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:19,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:19,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:19,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:19,394 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-29 06:37:20,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:20,742 INFO L93 Difference]: Finished difference Result 596 states and 804 transitions. [2020-10-29 06:37:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:20,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-29 06:37:20,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:20,751 INFO L225 Difference]: With dead ends: 596 [2020-10-29 06:37:20,752 INFO L226 Difference]: Without dead ends: 593 [2020-10-29 06:37:20,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:37:20,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-29 06:37:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 444. [2020-10-29 06:37:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-29 06:37:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 621 transitions. [2020-10-29 06:37:20,800 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 621 transitions. Word has length 129 [2020-10-29 06:37:20,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:20,801 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 621 transitions. [2020-10-29 06:37:20,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 621 transitions. [2020-10-29 06:37:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-29 06:37:20,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:20,806 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:20,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:37:20,806 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:20,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:20,807 INFO L82 PathProgramCache]: Analyzing trace with hash -636997607, now seen corresponding path program 1 times [2020-10-29 06:37:20,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:20,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847889642] [2020-10-29 06:37:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:20,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:21,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:22,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 06:37:22,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-10-29 06:37:22,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:22,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-29 06:37:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 06:37:22,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:22,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:22,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:22,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:22,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:37:22,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:22,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:22,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:22,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:22,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:22,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:22,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:22,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:22,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:22,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:37:22,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:22,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 06:37:22,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:22,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 06:37:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:22,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847889642] [2020-10-29 06:37:22,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:22,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:37:22,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864535975] [2020-10-29 06:37:22,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:22,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:22,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:22,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:22,516 INFO L87 Difference]: Start difference. First operand 444 states and 621 transitions. Second operand 5 states. [2020-10-29 06:37:24,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:24,036 INFO L93 Difference]: Finished difference Result 1176 states and 1703 transitions. [2020-10-29 06:37:24,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:24,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-10-29 06:37:24,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:24,049 INFO L225 Difference]: With dead ends: 1176 [2020-10-29 06:37:24,049 INFO L226 Difference]: Without dead ends: 738 [2020-10-29 06:37:24,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:37:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-10-29 06:37:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 591. [2020-10-29 06:37:24,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-29 06:37:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 784 transitions. [2020-10-29 06:37:24,117 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 784 transitions. Word has length 132 [2020-10-29 06:37:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:24,119 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 784 transitions. [2020-10-29 06:37:24,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 784 transitions. [2020-10-29 06:37:24,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-29 06:37:24,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:24,131 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:24,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:37:24,132 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:24,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:24,138 INFO L82 PathProgramCache]: Analyzing trace with hash 241930341, now seen corresponding path program 1 times [2020-10-29 06:37:24,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:24,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454554905] [2020-10-29 06:37:24,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:24,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:24,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:24,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:24,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 06:37:24,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:37:24,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-29 06:37:24,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:24,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:37:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 06:37:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:24,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:24,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:24,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:24,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:24,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 06:37:24,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:24,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:24,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:25,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:25,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:25,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:37:25,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:25,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 06:37:25,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:25,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:25,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:25,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:37:25,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:25,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454554905] [2020-10-29 06:37:25,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:25,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:37:25,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796843998] [2020-10-29 06:37:25,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:37:25,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:25,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:37:25,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:37:25,162 INFO L87 Difference]: Start difference. First operand 591 states and 784 transitions. Second operand 5 states. [2020-10-29 06:37:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:26,792 INFO L93 Difference]: Finished difference Result 1615 states and 2134 transitions. [2020-10-29 06:37:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:37:26,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-29 06:37:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:26,797 INFO L225 Difference]: With dead ends: 1615 [2020-10-29 06:37:26,797 INFO L226 Difference]: Without dead ends: 595 [2020-10-29 06:37:26,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:37:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-10-29 06:37:26,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2020-10-29 06:37:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-29 06:37:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 761 transitions. [2020-10-29 06:37:26,826 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 761 transitions. Word has length 138 [2020-10-29 06:37:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:26,826 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 761 transitions. [2020-10-29 06:37:26,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:37:26,827 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 761 transitions. [2020-10-29 06:37:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 06:37:26,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:26,830 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:26,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:37:26,831 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:26,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:26,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1204351825, now seen corresponding path program 1 times [2020-10-29 06:37:26,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:26,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737708931] [2020-10-29 06:37:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:26,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:26,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:27,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:28,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-29 06:37:28,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:37:28,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-10-29 06:37:28,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:28,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:28,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:28,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:28,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 06:37:28,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:28,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:37:28,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:28,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:28,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 06:37:28,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-29 06:37:28,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:28,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 06:37:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:37:28,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737708931] [2020-10-29 06:37:28,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:37:28,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:37:28,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441026484] [2020-10-29 06:37:28,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:28,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:28,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:28,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:28,977 INFO L87 Difference]: Start difference. First operand 591 states and 761 transitions. Second operand 7 states. [2020-10-29 06:37:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:30,613 INFO L93 Difference]: Finished difference Result 1641 states and 2142 transitions. [2020-10-29 06:37:30,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:37:30,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-29 06:37:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:30,627 INFO L225 Difference]: With dead ends: 1641 [2020-10-29 06:37:30,627 INFO L226 Difference]: Without dead ends: 1056 [2020-10-29 06:37:30,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:37:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-10-29 06:37:30,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 895. [2020-10-29 06:37:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-29 06:37:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1139 transitions. [2020-10-29 06:37:30,690 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1139 transitions. Word has length 181 [2020-10-29 06:37:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:30,690 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1139 transitions. [2020-10-29 06:37:30,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1139 transitions. [2020-10-29 06:37:30,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-29 06:37:30,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:30,695 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:30,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:37:30,695 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:30,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:30,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1305142198, now seen corresponding path program 1 times [2020-10-29 06:37:30,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:30,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367360520] [2020-10-29 06:37:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:30,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:30,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:31,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-29 06:37:35,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:37:35,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4315 [2020-10-29 06:37:35,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:37:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 06:37:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:35,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:35,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:35,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:35,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:37:35,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:35,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:35,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:35,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:35,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:37:35,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 06:37:35,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:37:35,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:35,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:37:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:35,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:35,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:35,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:37:35,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 06:37:35,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:35,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:37:35,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:35,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367360520] [2020-10-29 06:37:35,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:35,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:35,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517814084] [2020-10-29 06:37:35,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:35,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:35,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:35,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:35,644 INFO L87 Difference]: Start difference. First operand 895 states and 1139 transitions. Second operand 7 states. [2020-10-29 06:37:37,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:37,431 INFO L93 Difference]: Finished difference Result 2104 states and 2774 transitions. [2020-10-29 06:37:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:37:37,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-29 06:37:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:37,440 INFO L225 Difference]: With dead ends: 2104 [2020-10-29 06:37:37,440 INFO L226 Difference]: Without dead ends: 1215 [2020-10-29 06:37:37,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:37:37,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2020-10-29 06:37:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1197. [2020-10-29 06:37:37,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-10-29 06:37:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1570 transitions. [2020-10-29 06:37:37,497 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1570 transitions. Word has length 218 [2020-10-29 06:37:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:37,498 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 1570 transitions. [2020-10-29 06:37:37,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1570 transitions. [2020-10-29 06:37:37,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-29 06:37:37,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:37,504 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:37,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:37:37,504 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:37,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:37,505 INFO L82 PathProgramCache]: Analyzing trace with hash 816811146, now seen corresponding path program 1 times [2020-10-29 06:37:37,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:37,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968743690] [2020-10-29 06:37:37,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:37,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:37,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:40,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 06:37:42,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:37:42,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 06:37:42,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-29 06:37:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 06:37:42,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:42,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:42,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:42,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:42,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:37:42,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:37:42,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:42,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:37:42,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 06:37:42,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 06:37:42,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:42,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:37:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:42,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:42,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:42,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:37:42,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:42,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 06:37:42,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:42,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:42,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:37:42,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:43,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968743690] [2020-10-29 06:37:43,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:43,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:43,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565165601] [2020-10-29 06:37:43,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:43,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:43,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:43,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:43,104 INFO L87 Difference]: Start difference. First operand 1197 states and 1570 transitions. Second operand 7 states. [2020-10-29 06:37:45,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:45,072 INFO L93 Difference]: Finished difference Result 3143 states and 4191 transitions. [2020-10-29 06:37:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:37:45,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-29 06:37:45,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:45,087 INFO L225 Difference]: With dead ends: 3143 [2020-10-29 06:37:45,087 INFO L226 Difference]: Without dead ends: 1952 [2020-10-29 06:37:45,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:37:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2020-10-29 06:37:45,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1787. [2020-10-29 06:37:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1787 states. [2020-10-29 06:37:45,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2250 transitions. [2020-10-29 06:37:45,164 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2250 transitions. Word has length 228 [2020-10-29 06:37:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:45,164 INFO L481 AbstractCegarLoop]: Abstraction has 1787 states and 2250 transitions. [2020-10-29 06:37:45,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2250 transitions. [2020-10-29 06:37:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-29 06:37:45,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:45,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:37:45,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:37:45,171 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:45,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:45,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1938738512, now seen corresponding path program 1 times [2020-10-29 06:37:45,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:45,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695812847] [2020-10-29 06:37:45,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:45,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:45,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:47,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:50,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:50,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 06:37:50,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:37:50,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4865 [2020-10-29 06:37:50,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:50,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:50,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:50,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-29 06:37:50,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 06:37:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:50,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:50,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:50,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:50,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:37:50,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:50,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:50,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:50,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:50,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 06:37:50,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 06:37:50,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:50,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:37:50,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:50,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 06:37:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:50,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:50,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:50,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:37:50,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:50,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 06:37:50,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:50,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:50,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:37:50,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:50,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695812847] [2020-10-29 06:37:50,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:50,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:50,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401699168] [2020-10-29 06:37:50,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:50,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:50,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:50,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:50,601 INFO L87 Difference]: Start difference. First operand 1787 states and 2250 transitions. Second operand 7 states. [2020-10-29 06:37:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:52,398 INFO L93 Difference]: Finished difference Result 4458 states and 5680 transitions. [2020-10-29 06:37:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:37:52,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-29 06:37:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:52,416 INFO L225 Difference]: With dead ends: 4458 [2020-10-29 06:37:52,416 INFO L226 Difference]: Without dead ends: 2677 [2020-10-29 06:37:52,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:37:52,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2020-10-29 06:37:52,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2230. [2020-10-29 06:37:52,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2230 states. [2020-10-29 06:37:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2865 transitions. [2020-10-29 06:37:52,505 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2865 transitions. Word has length 237 [2020-10-29 06:37:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:52,506 INFO L481 AbstractCegarLoop]: Abstraction has 2230 states and 2865 transitions. [2020-10-29 06:37:52,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2865 transitions. [2020-10-29 06:37:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-29 06:37:52,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:52,514 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:52,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:37:52,514 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:52,515 INFO L82 PathProgramCache]: Analyzing trace with hash -60532802, now seen corresponding path program 1 times [2020-10-29 06:37:52,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:52,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330462795] [2020-10-29 06:37:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:52,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:53,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:54,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:56,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:56,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-29 06:37:56,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:37:56,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4360 [2020-10-29 06:37:56,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:56,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:37:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:37:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:57,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:37:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:57,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:57,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:37:57,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:37:57,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:57,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:37:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:37:57,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:57,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:37:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:57,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:57,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:37:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:57,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:37:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:57,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:57,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:37:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:37:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:37:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:37:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:37:57,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330462795] [2020-10-29 06:37:57,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:37:57,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:37:57,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145343968] [2020-10-29 06:37:57,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:37:57,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:37:57,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:37:57,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:37:57,467 INFO L87 Difference]: Start difference. First operand 2230 states and 2865 transitions. Second operand 7 states. [2020-10-29 06:37:59,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:37:59,461 INFO L93 Difference]: Finished difference Result 4766 states and 6155 transitions. [2020-10-29 06:37:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:37:59,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-10-29 06:37:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:37:59,479 INFO L225 Difference]: With dead ends: 4766 [2020-10-29 06:37:59,480 INFO L226 Difference]: Without dead ends: 2542 [2020-10-29 06:37:59,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:37:59,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2020-10-29 06:37:59,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2532. [2020-10-29 06:37:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2532 states. [2020-10-29 06:37:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3223 transitions. [2020-10-29 06:37:59,573 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3223 transitions. Word has length 255 [2020-10-29 06:37:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:37:59,573 INFO L481 AbstractCegarLoop]: Abstraction has 2532 states and 3223 transitions. [2020-10-29 06:37:59,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:37:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3223 transitions. [2020-10-29 06:37:59,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-29 06:37:59,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:37:59,582 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:59,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:37:59,582 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:37:59,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:37:59,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1489869974, now seen corresponding path program 1 times [2020-10-29 06:37:59,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:37:59,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921053898] [2020-10-29 06:37:59,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:37:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:37:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:37:59,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:01,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:01,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:01,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-29 06:38:01,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2326 [2020-10-29 06:38:01,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:01,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:01,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:01,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:38:01,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:38:01,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:02,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:02,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:02,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:02,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:38:02,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:02,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:38:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:02,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:02,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:02,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:02,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:02,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 06:38:02,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:02,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:38:02,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:38:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:02,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:02,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:02,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:02,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:02,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 06:38:02,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:02,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:38:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:02,531 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 102 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:38:02,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921053898] [2020-10-29 06:38:02,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:02,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:02,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130817627] [2020-10-29 06:38:02,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:02,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:02,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:02,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:02,535 INFO L87 Difference]: Start difference. First operand 2532 states and 3223 transitions. Second operand 7 states. [2020-10-29 06:38:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:04,105 INFO L93 Difference]: Finished difference Result 5209 states and 6610 transitions. [2020-10-29 06:38:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:38:04,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-29 06:38:04,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:04,129 INFO L225 Difference]: With dead ends: 5209 [2020-10-29 06:38:04,129 INFO L226 Difference]: Without dead ends: 2683 [2020-10-29 06:38:04,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:38:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2020-10-29 06:38:04,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2675. [2020-10-29 06:38:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2675 states. [2020-10-29 06:38:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3373 transitions. [2020-10-29 06:38:04,231 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3373 transitions. Word has length 265 [2020-10-29 06:38:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:04,232 INFO L481 AbstractCegarLoop]: Abstraction has 2675 states and 3373 transitions. [2020-10-29 06:38:04,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3373 transitions. [2020-10-29 06:38:04,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-29 06:38:04,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:04,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:04,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:38:04,242 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:04,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2127379890, now seen corresponding path program 1 times [2020-10-29 06:38:04,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:04,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771454910] [2020-10-29 06:38:04,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:04,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:06,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:06,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-29 06:38:06,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1757 [2020-10-29 06:38:06,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:06,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:38:06,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:06,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:06,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:06,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:06,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:38:06,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:06,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:06,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:06,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:06,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:06,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:06,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 06:38:06,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:06,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:06,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:06,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:06,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:06,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:06,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:38:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:38:06,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771454910] [2020-10-29 06:38:06,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:06,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:38:06,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174625013] [2020-10-29 06:38:06,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:38:06,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:38:06,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:38:06,829 INFO L87 Difference]: Start difference. First operand 2675 states and 3373 transitions. Second operand 8 states. [2020-10-29 06:38:08,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:08,793 INFO L93 Difference]: Finished difference Result 5650 states and 7233 transitions. [2020-10-29 06:38:08,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:38:08,794 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 293 [2020-10-29 06:38:08,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:08,810 INFO L225 Difference]: With dead ends: 5650 [2020-10-29 06:38:08,811 INFO L226 Difference]: Without dead ends: 3124 [2020-10-29 06:38:08,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:38:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-10-29 06:38:08,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3120. [2020-10-29 06:38:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-10-29 06:38:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3885 transitions. [2020-10-29 06:38:08,912 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3885 transitions. Word has length 293 [2020-10-29 06:38:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:08,913 INFO L481 AbstractCegarLoop]: Abstraction has 3120 states and 3885 transitions. [2020-10-29 06:38:08,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:38:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3885 transitions. [2020-10-29 06:38:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-29 06:38:08,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:08,923 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 06:38:08,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:38:08,924 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:08,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:08,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1766391238, now seen corresponding path program 1 times [2020-10-29 06:38:08,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:08,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100074634] [2020-10-29 06:38:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:09,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:09,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:09,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:10,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:10,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1608 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:38:10,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:10,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:10,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:10,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:10,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:10,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:38:10,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:10,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:10,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:10,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:10,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:10,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:38:10,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:10,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 06:38:10,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:10,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 06:38:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:10,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:38:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:10,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:11,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:11,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:11,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:11,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-29 06:38:11,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:11,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:11,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:38:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:38:11,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100074634] [2020-10-29 06:38:11,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:11,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:11,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839223601] [2020-10-29 06:38:11,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:11,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:11,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:11,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:11,262 INFO L87 Difference]: Start difference. First operand 3120 states and 3885 transitions. Second operand 7 states. [2020-10-29 06:38:13,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:13,060 INFO L93 Difference]: Finished difference Result 6385 states and 8045 transitions. [2020-10-29 06:38:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:38:13,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-29 06:38:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:13,079 INFO L225 Difference]: With dead ends: 6385 [2020-10-29 06:38:13,079 INFO L226 Difference]: Without dead ends: 3414 [2020-10-29 06:38:13,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:38:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2020-10-29 06:38:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3412. [2020-10-29 06:38:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3412 states. [2020-10-29 06:38:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 4260 transitions. [2020-10-29 06:38:13,219 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 4260 transitions. Word has length 315 [2020-10-29 06:38:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:13,219 INFO L481 AbstractCegarLoop]: Abstraction has 3412 states and 4260 transitions. [2020-10-29 06:38:13,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 4260 transitions. [2020-10-29 06:38:13,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-29 06:38:13,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:13,234 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:13,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:38:13,234 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:13,235 INFO L82 PathProgramCache]: Analyzing trace with hash 665656529, now seen corresponding path program 1 times [2020-10-29 06:38:13,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:13,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783178850] [2020-10-29 06:38:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:13,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:13,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:13,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:16,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:16,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3310 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-29 06:38:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:16,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:16,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:16,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:16,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:16,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 06:38:16,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:16,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:16,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:16,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:16,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:16,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:16,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:16,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:16,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:16,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:16,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:16,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:38:16,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:16,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 06:38:16,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:16,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 06:38:16,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:16,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:38:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:16,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:17,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:17,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:17,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:17,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 06:38:17,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:17,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:17,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:17,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:17,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:38:17,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 347 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-29 06:38:17,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783178850] [2020-10-29 06:38:17,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:17,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:17,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603568719] [2020-10-29 06:38:17,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:17,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:17,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:17,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:17,280 INFO L87 Difference]: Start difference. First operand 3412 states and 4260 transitions. Second operand 7 states. [2020-10-29 06:38:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:19,244 INFO L93 Difference]: Finished difference Result 7110 states and 9000 transitions. [2020-10-29 06:38:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:38:19,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 378 [2020-10-29 06:38:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:19,265 INFO L225 Difference]: With dead ends: 7110 [2020-10-29 06:38:19,265 INFO L226 Difference]: Without dead ends: 3847 [2020-10-29 06:38:19,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:38:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2020-10-29 06:38:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 3839. [2020-10-29 06:38:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3839 states. [2020-10-29 06:38:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 4589 transitions. [2020-10-29 06:38:19,385 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 4589 transitions. Word has length 378 [2020-10-29 06:38:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:19,386 INFO L481 AbstractCegarLoop]: Abstraction has 3839 states and 4589 transitions. [2020-10-29 06:38:19,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 4589 transitions. [2020-10-29 06:38:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-29 06:38:19,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:19,402 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:19,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:38:19,402 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:19,403 INFO L82 PathProgramCache]: Analyzing trace with hash -2115057459, now seen corresponding path program 1 times [2020-10-29 06:38:19,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:19,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349367879] [2020-10-29 06:38:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:19,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3526 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 06:38:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:23,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:23,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:38:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:23,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:23,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:23,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:23,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:38:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:23,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:38:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:23,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:23,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:23,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-29 06:38:23,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:38:23,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:23,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-29 06:38:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:23,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:23,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 06:38:23,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:23,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 06:38:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:23,749 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 241 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 06:38:23,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349367879] [2020-10-29 06:38:23,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:23,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:38:23,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027870644] [2020-10-29 06:38:23,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:23,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:23,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:23,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:23,752 INFO L87 Difference]: Start difference. First operand 3839 states and 4589 transitions. Second operand 7 states. [2020-10-29 06:38:25,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:25,691 INFO L93 Difference]: Finished difference Result 7547 states and 9070 transitions. [2020-10-29 06:38:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:38:25,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 380 [2020-10-29 06:38:25,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:25,719 INFO L225 Difference]: With dead ends: 7547 [2020-10-29 06:38:25,720 INFO L226 Difference]: Without dead ends: 3857 [2020-10-29 06:38:25,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 06:38:25,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2020-10-29 06:38:25,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3841. [2020-10-29 06:38:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-10-29 06:38:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 4580 transitions. [2020-10-29 06:38:25,846 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 4580 transitions. Word has length 380 [2020-10-29 06:38:25,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:25,846 INFO L481 AbstractCegarLoop]: Abstraction has 3841 states and 4580 transitions. [2020-10-29 06:38:25,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:38:25,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 4580 transitions. [2020-10-29 06:38:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-10-29 06:38:25,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:25,858 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:25,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 06:38:25,859 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:25,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:25,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1761828967, now seen corresponding path program 1 times [2020-10-29 06:38:25,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:25,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407944651] [2020-10-29 06:38:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:26,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:26,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:27,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:27,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-29 06:38:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1162 [2020-10-29 06:38:27,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:27,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-29 06:38:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 06:38:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:27,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:27,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:27,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:27,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:38:27,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:27,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:27,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:27,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:27,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:27,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:27,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 06:38:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:27,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:27,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:27,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:38:27,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:27,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 06:38:27,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:27,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:27,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:27,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:27,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-29 06:38:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:27,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:27,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:27,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 06:38:27,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:27,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:27,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 06:38:27,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-29 06:38:27,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407944651] [2020-10-29 06:38:27,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:27,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:27,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795064456] [2020-10-29 06:38:27,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:27,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:27,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:27,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:27,750 INFO L87 Difference]: Start difference. First operand 3841 states and 4580 transitions. Second operand 5 states. [2020-10-29 06:38:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:29,141 INFO L93 Difference]: Finished difference Result 8256 states and 9956 transitions. [2020-10-29 06:38:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:29,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 399 [2020-10-29 06:38:29,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:29,162 INFO L225 Difference]: With dead ends: 8256 [2020-10-29 06:38:29,162 INFO L226 Difference]: Without dead ends: 4564 [2020-10-29 06:38:29,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2020-10-29 06:38:29,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 4131. [2020-10-29 06:38:29,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4131 states. [2020-10-29 06:38:29,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 4937 transitions. [2020-10-29 06:38:29,278 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 4937 transitions. Word has length 399 [2020-10-29 06:38:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:29,279 INFO L481 AbstractCegarLoop]: Abstraction has 4131 states and 4937 transitions. [2020-10-29 06:38:29,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 4937 transitions. [2020-10-29 06:38:29,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-10-29 06:38:29,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:29,290 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:29,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 06:38:29,290 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:29,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:29,291 INFO L82 PathProgramCache]: Analyzing trace with hash -752219361, now seen corresponding path program 1 times [2020-10-29 06:38:29,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:29,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984827433] [2020-10-29 06:38:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:29,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:29,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:30,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-29 06:38:30,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:38:30,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-29 06:38:30,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:30,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:30,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:30,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-29 06:38:30,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 06:38:30,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:38:30,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:30,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:38:30,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:30,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:30,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:30,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:30,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:30,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:30,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:30,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:38:30,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:30,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 06:38:30,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:30,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:30,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:30,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:38:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:30,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:30,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:38:30,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 06:38:30,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:30,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:38:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:38:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-29 06:38:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:30,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:30,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:30,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 06:38:30,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:30,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 06:38:30,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:30,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 06:38:30,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:38:30,820 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-29 06:38:30,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984827433] [2020-10-29 06:38:30,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:38:30,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:38:30,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781504833] [2020-10-29 06:38:30,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:38:30,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:30,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:38:30,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:30,825 INFO L87 Difference]: Start difference. First operand 4131 states and 4937 transitions. Second operand 5 states. [2020-10-29 06:38:32,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:32,075 INFO L93 Difference]: Finished difference Result 4276 states and 5105 transitions. [2020-10-29 06:38:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:32,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 399 [2020-10-29 06:38:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:32,085 INFO L225 Difference]: With dead ends: 4276 [2020-10-29 06:38:32,085 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:38:32,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:38:32,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:38:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:38:32,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:38:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:38:32,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 399 [2020-10-29 06:38:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:32,095 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:38:32,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:38:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:38:32,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:38:32,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 06:38:32,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:38:32,672 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 138 [2020-10-29 06:38:33,809 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 138 [2020-10-29 06:38:34,201 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 37 [2020-10-29 06:38:34,451 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 36 [2020-10-29 06:38:35,208 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 48 [2020-10-29 06:38:35,502 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 37 [2020-10-29 06:38:35,507 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:38:35,507 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:38:35,507 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:38:35,507 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:38:35,507 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:38:35,508 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:38:35,509 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:38:35,509 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:38:35,509 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:38:35,509 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:38:35,511 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:38:35,511 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:38:35,511 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:38:35,511 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:38:35,512 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,513 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,514 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:38:35,514 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:38:35,514 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:38:35,514 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:38:35,515 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:38:35,516 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:38:35,516 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:38:35,517 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:38:35,517 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,518 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,519 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,519 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:38:35,520 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:38:35,521 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:38:35,522 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:38:35,523 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:38:35,523 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:38:35,523 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:38:35,523 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:38:35,523 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:38:35,524 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:38:35,525 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:38:35,525 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,525 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,525 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,526 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,527 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:38:35,528 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:38:35,529 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,530 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,531 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,531 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,531 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:38:35,531 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (not (<= 7 |old(~a19~0)|))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 .cse1 (not (= 0 |old(~a10~0)|))) (or .cse1 (not (<= |old(~a1~0)| 33)) (not (<= |old(~a10~0)| 3))) (or .cse0 .cse1 (not (= |old(~a10~0)| 1))) (or .cse1 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse1) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse1) (or .cse0 .cse1 (not (= 2 |old(~a10~0)|))))) [2020-10-29 06:38:35,531 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:38:35,531 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,532 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L270 CegarLoopResult]: At program point L162(line 162) the Hoare annotation is: (let ((.cse0 (not (<= 7 |old(~a19~0)|)))) (and (or (not (<= |old(~a1~0)| 33)) (not (<= |old(~a10~0)| 3))) (or .cse0 (not (= 2 |old(~a10~0)|))) (not (<= (+ |old(~a1~0)| 75821) 0)) (not (= 9 |old(~a19~0)|)) (or .cse0 (not (= 0 |old(~a10~0)|))) (or .cse0 (not (= |old(~a10~0)| 1))) (not (= 8 |old(~a19~0)|)))) [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L162-1(line 162) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:38:35,533 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:38:35,534 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-29 06:38:35,535 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:38:35,535 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:38:35,535 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-29 06:38:35,536 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:38:35,536 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= 7 ~a19~0))) (or (= ~a19~0 8) (and .cse0 (= ~a10~0 2)) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 1) .cse0) (and (<= ~a1~0 33) (<= ~a10~0 3)) (and .cse0 (= ~a10~0 0)) (<= (+ ~a1~0 75821) 0) (not (= 23 |old(~a1~0)|)))) [2020-10-29 06:38:35,536 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:38:35,536 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:38:35,536 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= 7 ~a19~0))) (or (= ~a19~0 8) (and .cse0 (= ~a10~0 2)) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 1) .cse0) (and (<= ~a1~0 33) (<= ~a10~0 3)) (and .cse0 (= ~a10~0 0)) (<= (+ ~a1~0 75821) 0) (not (= 23 |old(~a1~0)|)))) [2020-10-29 06:38:35,536 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:38:35,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:38:35 BoogieIcfgContainer [2020-10-29 06:38:35,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:38:35,563 INFO L168 Benchmark]: Toolchain (without parser) took 83880.14 ms. Allocated memory was 151.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 124.9 MB in the beginning and 1.1 GB in the end (delta: -970.7 MB). Peak memory consumption was 762.9 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:35,569 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:38:35,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.44 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 131.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:35,576 INFO L168 Benchmark]: Boogie Preprocessor took 124.87 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 126.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:35,577 INFO L168 Benchmark]: RCFGBuilder took 1662.82 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 126.7 MB in the beginning and 150.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:35,578 INFO L168 Benchmark]: TraceAbstraction took 81297.77 ms. Allocated memory was 196.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 149.9 MB in the beginning and 1.1 GB in the end (delta: -945.6 MB). Peak memory consumption was 742.1 MB. Max. memory is 8.0 GB. [2020-10-29 06:38:35,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 778.44 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 131.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 124.87 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 126.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1662.82 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 126.7 MB in the beginning and 150.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 81297.77 ms. Allocated memory was 196.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 149.9 MB in the beginning and 1.1 GB in the end (delta: -945.6 MB). Peak memory consumption was 742.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((a19 == 8 || (7 <= a19 && a10 == 2)) || !(9 == \old(a19))) || a19 == 9) || !(0 == \old(a10))) || (a10 == 1 && 7 <= a19)) || (a1 <= 33 && a10 <= 3)) || (7 <= a19 && a10 == 0)) || a1 + 75821 <= 0) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 77.7s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 27.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 421 SDtfs, 6515 SDslu, 549 SDs, 0 SdLazy, 13494 SolverSat, 1658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4131occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1576 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 444 PreInvPairs, 508 NumberOfFragments, 375 HoareAnnotationTreeSize, 444 FomulaSimplifications, 1894611 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 24700 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 45.8s InterpolantComputationTime, 4006 NumberOfCodeBlocks, 4006 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3990 ConstructedInterpolants, 0 QuantifiedInterpolants, 2912758 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3127/3320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...