/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 23:24:59,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 23:24:59,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 23:24:59,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 23:24:59,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 23:24:59,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 23:24:59,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 23:24:59,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 23:24:59,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 23:24:59,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 23:24:59,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 23:24:59,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 23:24:59,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 23:24:59,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 23:24:59,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 23:24:59,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 23:24:59,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 23:24:59,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 23:24:59,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 23:24:59,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 23:24:59,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 23:24:59,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 23:24:59,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 23:24:59,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 23:24:59,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 23:24:59,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 23:24:59,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 23:24:59,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 23:24:59,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 23:24:59,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 23:24:59,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 23:24:59,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 23:24:59,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 23:24:59,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 23:24:59,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 23:24:59,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 23:24:59,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 23:24:59,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 23:24:59,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 23:24:59,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 23:24:59,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 23:24:59,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 23:24:59,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 23:24:59,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 23:24:59,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 23:24:59,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 23:24:59,531 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 23:24:59,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 23:24:59,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 23:24:59,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 23:24:59,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 23:24:59,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 23:24:59,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 23:24:59,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 23:24:59,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 23:24:59,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 23:24:59,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 23:24:59,535 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 23:24:59,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 23:24:59,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 23:24:59,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 23:24:59,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 23:24:59,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 23:24:59,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 23:24:59,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 23:24:59,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 23:24:59,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 23:24:59,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 23:24:59,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 23:24:59,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 23:24:59,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 23:24:59,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 23:24:59,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 23:24:59,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 23:24:59,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 23:24:59,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 23:24:59,998 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 23:24:59,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23.c [2020-10-26 23:25:00,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ea720819/b60744d246cf4841a4f993ca333e5ba0/FLAGad86276ab [2020-10-26 23:25:00,825 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 23:25:00,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label23.c [2020-10-26 23:25:00,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ea720819/b60744d246cf4841a4f993ca333e5ba0/FLAGad86276ab [2020-10-26 23:25:01,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ea720819/b60744d246cf4841a4f993ca333e5ba0 [2020-10-26 23:25:01,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 23:25:01,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 23:25:01,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 23:25:01,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 23:25:01,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 23:25:01,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:01,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b670a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01, skipping insertion in model container [2020-10-26 23:25:01,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:01,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 23:25:01,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 23:25:01,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 23:25:01,760 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 23:25:01,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 23:25:01,970 INFO L208 MainTranslator]: Completed translation [2020-10-26 23:25:01,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01 WrapperNode [2020-10-26 23:25:01,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 23:25:01,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 23:25:01,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 23:25:01,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 23:25:01,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:01,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:02,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:02,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:02,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:02,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:02,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... [2020-10-26 23:25:02,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 23:25:02,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 23:25:02,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 23:25:02,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 23:25:02,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 23:25:02,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 23:25:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 23:25:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 23:25:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 23:25:02,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 23:25:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 23:25:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 23:25:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 23:25:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 23:25:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 23:25:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 23:25:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 23:25:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 23:25:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 23:25:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 23:25:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 23:25:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 23:25:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 23:25:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 23:25:03,909 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 23:25:03,909 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 23:25:03,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:25:03 BoogieIcfgContainer [2020-10-26 23:25:03,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 23:25:03,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 23:25:03,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 23:25:03,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 23:25:03,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:25:01" (1/3) ... [2020-10-26 23:25:03,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edb0a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:25:03, skipping insertion in model container [2020-10-26 23:25:03,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:25:01" (2/3) ... [2020-10-26 23:25:03,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edb0a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:25:03, skipping insertion in model container [2020-10-26 23:25:03,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:25:03" (3/3) ... [2020-10-26 23:25:03,922 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2020-10-26 23:25:03,935 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 23:25:03,941 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 23:25:03,962 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 23:25:03,992 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 23:25:03,992 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 23:25:03,992 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 23:25:03,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 23:25:03,993 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 23:25:03,993 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 23:25:03,993 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 23:25:03,993 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 23:25:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-26 23:25:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-26 23:25:04,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:04,027 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] [2020-10-26 23:25:04,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:04,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:04,034 INFO L82 PathProgramCache]: Analyzing trace with hash -2120988074, now seen corresponding path program 1 times [2020-10-26 23:25:04,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:04,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366760578] [2020-10-26 23:25:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:04,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:04,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:04,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-26 23:25:04,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:04,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-26 23:25:04,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 23:25:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 23:25:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-26 23:25:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 23:25:05,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:05,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:05,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:05,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:05,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 23:25:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 23:25:05,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:05,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 23:25:05,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366760578] [2020-10-26 23:25:05,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 23:25:05,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 23:25:05,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444862848] [2020-10-26 23:25:05,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 23:25:05,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:05,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 23:25:05,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 23:25:05,094 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-26 23:25:08,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:08,758 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-26 23:25:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 23:25:08,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-26 23:25:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:08,803 INFO L225 Difference]: With dead ends: 891 [2020-10-26 23:25:08,804 INFO L226 Difference]: Without dead ends: 565 [2020-10-26 23:25:08,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:25:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-26 23:25:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-26 23:25:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-26 23:25:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-26 23:25:08,946 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 39 [2020-10-26 23:25:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:08,947 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-26 23:25:08,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 23:25:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-26 23:25:08,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-26 23:25:08,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:08,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:25:08,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 23:25:08,954 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash -531711625, now seen corresponding path program 1 times [2020-10-26 23:25:08,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:08,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050988605] [2020-10-26 23:25:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:09,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:10,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:10,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-26 23:25:10,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 23:25:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-10-26 23:25:10,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 23:25:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 23:25:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 23:25:10,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:25:10,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:10,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:10,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:10,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:10,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:10,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 23:25:10,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 23:25:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:10,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:10,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:10,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:25:10,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-26 23:25:10,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 23:25:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 23:25:11,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050988605] [2020-10-26 23:25:11,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 23:25:11,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 23:25:11,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420151574] [2020-10-26 23:25:11,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:25:11,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:11,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:25:11,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:25:11,087 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 7 states. [2020-10-26 23:25:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:13,781 INFO L93 Difference]: Finished difference Result 1322 states and 2176 transitions. [2020-10-26 23:25:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 23:25:13,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-10-26 23:25:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:13,790 INFO L225 Difference]: With dead ends: 1322 [2020-10-26 23:25:13,790 INFO L226 Difference]: Without dead ends: 769 [2020-10-26 23:25:13,793 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 [2020-10-26 23:25:13,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-26 23:25:13,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 567. [2020-10-26 23:25:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-10-26 23:25:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 820 transitions. [2020-10-26 23:25:13,846 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 820 transitions. Word has length 113 [2020-10-26 23:25:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:13,847 INFO L481 AbstractCegarLoop]: Abstraction has 567 states and 820 transitions. [2020-10-26 23:25:13,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:25:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 820 transitions. [2020-10-26 23:25:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 23:25:13,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:13,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:25:13,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 23:25:13,859 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:13,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:13,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1263845413, now seen corresponding path program 1 times [2020-10-26 23:25:13,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:13,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549502395] [2020-10-26 23:25:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:13,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:14,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:15,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:15,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 23:25:15,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 23:25:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1478 [2020-10-26 23:25:15,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 23:25:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 23:25:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-26 23:25:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:15,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:15,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:15,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:15,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:15,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:15,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 23:25:15,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 23:25:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 23:25:15,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:15,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:15,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:15,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:25:15,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-26 23:25:15,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 23:25:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 23:25:16,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549502395] [2020-10-26 23:25:16,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 23:25:16,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 23:25:16,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941326864] [2020-10-26 23:25:16,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:25:16,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:16,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:25:16,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:25:16,041 INFO L87 Difference]: Start difference. First operand 567 states and 820 transitions. Second operand 7 states. [2020-10-26 23:25:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:18,746 INFO L93 Difference]: Finished difference Result 1334 states and 1924 transitions. [2020-10-26 23:25:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 23:25:18,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-26 23:25:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:18,755 INFO L225 Difference]: With dead ends: 1334 [2020-10-26 23:25:18,755 INFO L226 Difference]: Without dead ends: 773 [2020-10-26 23:25:18,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 23:25:18,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-10-26 23:25:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 751. [2020-10-26 23:25:18,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-26 23:25:18,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1019 transitions. [2020-10-26 23:25:18,799 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1019 transitions. Word has length 122 [2020-10-26 23:25:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:18,800 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 1019 transitions. [2020-10-26 23:25:18,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:25:18,800 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1019 transitions. [2020-10-26 23:25:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-26 23:25:18,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:18,806 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 23:25:18,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 23:25:18,806 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:18,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:18,807 INFO L82 PathProgramCache]: Analyzing trace with hash -348177904, now seen corresponding path program 1 times [2020-10-26 23:25:18,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:18,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615846307] [2020-10-26 23:25:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:18,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:18,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:19,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:19,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:22,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:22,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-26 23:25:22,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 23:25:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3239 [2020-10-26 23:25:22,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 23:25:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 23:25:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-26 23:25:22,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:22,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:22,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:22,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:22,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:22,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:22,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:25:22,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:22,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:22,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:22,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 23:25:22,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:22,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:22,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-26 23:25:22,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-26 23:25:22,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 23:25:22,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:22,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 23:25:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:22,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:22,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:25:22,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:22,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-26 23:25:22,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:22,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 23:25:22,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 63 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 23:25:23,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615846307] [2020-10-26 23:25:23,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:25:23,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:25:23,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833342424] [2020-10-26 23:25:23,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 23:25:23,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:23,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 23:25:23,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 23:25:23,053 INFO L87 Difference]: Start difference. First operand 751 states and 1019 transitions. Second operand 8 states. [2020-10-26 23:25:26,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:26,000 INFO L93 Difference]: Finished difference Result 1556 states and 2186 transitions. [2020-10-26 23:25:26,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 23:25:26,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 206 [2020-10-26 23:25:26,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:26,010 INFO L225 Difference]: With dead ends: 1556 [2020-10-26 23:25:26,010 INFO L226 Difference]: Without dead ends: 993 [2020-10-26 23:25:26,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-26 23:25:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2020-10-26 23:25:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 941. [2020-10-26 23:25:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-10-26 23:25:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1232 transitions. [2020-10-26 23:25:26,063 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1232 transitions. Word has length 206 [2020-10-26 23:25:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:26,064 INFO L481 AbstractCegarLoop]: Abstraction has 941 states and 1232 transitions. [2020-10-26 23:25:26,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 23:25:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1232 transitions. [2020-10-26 23:25:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-26 23:25:26,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:26,068 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:25:26,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 23:25:26,069 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:26,070 INFO L82 PathProgramCache]: Analyzing trace with hash -255207038, now seen corresponding path program 1 times [2020-10-26 23:25:26,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:26,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258206538] [2020-10-26 23:25:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:26,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:26,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:26,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:26,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:27,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:31,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:31,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-26 23:25:31,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 23:25:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 23:25:31,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 23:25:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 23:25:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-26 23:25:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:31,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:31,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:31,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:31,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:31,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:31,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 23:25:31,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 23:25:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:25:31,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:31,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:31,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:31,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:25:31,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:31,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-26 23:25:31,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:31,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:31,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 23:25:31,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-26 23:25:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 23:25:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:31,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:31,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:25:31,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-26 23:25:31,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:25:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-26 23:25:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:25:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 62 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 23:25:31,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258206538] [2020-10-26 23:25:31,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:25:31,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:25:31,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456303836] [2020-10-26 23:25:31,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:25:31,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:31,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:25:31,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:25:31,705 INFO L87 Difference]: Start difference. First operand 941 states and 1232 transitions. Second operand 7 states. [2020-10-26 23:25:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:34,502 INFO L93 Difference]: Finished difference Result 2276 states and 3076 transitions. [2020-10-26 23:25:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 23:25:34,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-10-26 23:25:34,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:34,515 INFO L225 Difference]: With dead ends: 2276 [2020-10-26 23:25:34,516 INFO L226 Difference]: Without dead ends: 1523 [2020-10-26 23:25:34,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 23:25:34,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-10-26 23:25:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1511. [2020-10-26 23:25:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1511 states. [2020-10-26 23:25:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1900 transitions. [2020-10-26 23:25:34,590 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1900 transitions. Word has length 231 [2020-10-26 23:25:34,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:34,592 INFO L481 AbstractCegarLoop]: Abstraction has 1511 states and 1900 transitions. [2020-10-26 23:25:34,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:25:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1900 transitions. [2020-10-26 23:25:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-26 23:25:34,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:34,602 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:25:34,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 23:25:34,602 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:34,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1722647737, now seen corresponding path program 1 times [2020-10-26 23:25:34,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:34,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30912859] [2020-10-26 23:25:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:34,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:34,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:35,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:36,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:36,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:39,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-26 23:25:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 23:25:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4757 [2020-10-26 23:25:39,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-26 23:25:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 23:25:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:39,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:39,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:39,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:39,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:39,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:39,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 23:25:39,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:25:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:39,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:25:39,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:39,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:39,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:39,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:39,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-26 23:25:39,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 23:25:39,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 23:25:39,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:25:39,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 23:25:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:39,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:40,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:40,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 23:25:40,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:25:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-26 23:25:40,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:40,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:40,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-26 23:25:40,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:40,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-26 23:25:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:40,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:40,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:25:40,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 23:25:40,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:25:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-26 23:25:40,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:25:40,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 178 proven. 82 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-26 23:25:41,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30912859] [2020-10-26 23:25:41,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:25:41,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:25:41,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860850254] [2020-10-26 23:25:41,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:25:41,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:41,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:25:41,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:25:41,243 INFO L87 Difference]: Start difference. First operand 1511 states and 1900 transitions. Second operand 7 states. [2020-10-26 23:25:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:43,639 INFO L93 Difference]: Finished difference Result 2772 states and 3564 transitions. [2020-10-26 23:25:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 23:25:43,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 339 [2020-10-26 23:25:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:43,649 INFO L225 Difference]: With dead ends: 2772 [2020-10-26 23:25:43,649 INFO L226 Difference]: Without dead ends: 1545 [2020-10-26 23:25:43,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 23:25:43,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2020-10-26 23:25:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1503. [2020-10-26 23:25:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2020-10-26 23:25:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1665 transitions. [2020-10-26 23:25:43,705 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1665 transitions. Word has length 339 [2020-10-26 23:25:43,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:43,706 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states and 1665 transitions. [2020-10-26 23:25:43,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:25:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1665 transitions. [2020-10-26 23:25:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-10-26 23:25:43,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:43,715 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:25:43,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 23:25:43,716 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:43,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2030441374, now seen corresponding path program 1 times [2020-10-26 23:25:43,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:43,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100207103] [2020-10-26 23:25:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:43,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:44,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:44,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:44,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:45,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:47,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:48,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:48,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:48,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 469 [2020-10-26 23:25:48,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 23:25:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5156 [2020-10-26 23:25:48,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 23:25:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 23:25:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 424 [2020-10-26 23:25:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:49,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:49,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:49,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:49,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 23:25:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 23:25:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:25:49,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:49,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:49,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:49,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:49,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:25:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:25:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-26 23:25:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 23:25:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:25:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:25:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:49,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:49,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:49,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:49,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:25:49,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:25:49,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-26 23:25:49,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:49,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 23:25:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:25:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:50,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:50,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:50,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:25:50,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:25:50,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-26 23:25:50,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:50,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:50,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 23:25:50,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:50,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-26 23:25:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:50,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:50,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:50,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:25:50,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:50,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 23:25:50,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:50,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 23:25:50,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 127 proven. 443 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-10-26 23:25:51,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100207103] [2020-10-26 23:25:51,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:25:51,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 23:25:51,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139909827] [2020-10-26 23:25:51,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 23:25:51,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:25:51,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 23:25:51,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 23:25:51,438 INFO L87 Difference]: Start difference. First operand 1503 states and 1665 transitions. Second operand 10 states. [2020-10-26 23:25:53,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:25:53,727 INFO L93 Difference]: Finished difference Result 2844 states and 3222 transitions. [2020-10-26 23:25:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 23:25:53,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 451 [2020-10-26 23:25:53,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:25:53,736 INFO L225 Difference]: With dead ends: 2844 [2020-10-26 23:25:53,737 INFO L226 Difference]: Without dead ends: 1713 [2020-10-26 23:25:53,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-26 23:25:53,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2020-10-26 23:25:53,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1689. [2020-10-26 23:25:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2020-10-26 23:25:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 1864 transitions. [2020-10-26 23:25:53,793 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 1864 transitions. Word has length 451 [2020-10-26 23:25:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:25:53,794 INFO L481 AbstractCegarLoop]: Abstraction has 1689 states and 1864 transitions. [2020-10-26 23:25:53,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 23:25:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 1864 transitions. [2020-10-26 23:25:53,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2020-10-26 23:25:53,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:25:53,811 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-26 23:25:53,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 23:25:53,811 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:25:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:25:53,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1020253507, now seen corresponding path program 1 times [2020-10-26 23:25:53,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:25:53,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422039054] [2020-10-26 23:25:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:25:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:54,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:54,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:58,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:58,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 641 [2020-10-26 23:25:58,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 23:25:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 23:25:58,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 23:25:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-26 23:25:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-26 23:25:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:59,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:25:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:59,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:25:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 23:25:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:25:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:25:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:59,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:25:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:59,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:59,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:25:59,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:59,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:25:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:59,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:59,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:25:59,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-26 23:25:59,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:25:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:25:59,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 23:25:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:25:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:59,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:59,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:25:59,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:25:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-26 23:25:59,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 23:25:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:59,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-26 23:25:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:59,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:59,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:25:59,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-26 23:25:59,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:25:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:25:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:25:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:25:59,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-26 23:25:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:25:59,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:25:59,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:25:59,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:25:59,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:25:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 23:25:59,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:25:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:25:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:25:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:25:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 600 proven. 146 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2020-10-26 23:26:00,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422039054] [2020-10-26 23:26:00,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:00,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:26:00,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757668005] [2020-10-26 23:26:00,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:26:00,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:00,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:26:00,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:26:00,178 INFO L87 Difference]: Start difference. First operand 1689 states and 1864 transitions. Second operand 7 states. [2020-10-26 23:26:02,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:26:02,309 INFO L93 Difference]: Finished difference Result 3790 states and 4303 transitions. [2020-10-26 23:26:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 23:26:02,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 621 [2020-10-26 23:26:02,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:26:02,324 INFO L225 Difference]: With dead ends: 3790 [2020-10-26 23:26:02,324 INFO L226 Difference]: Without dead ends: 2473 [2020-10-26 23:26:02,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 23:26:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2020-10-26 23:26:02,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2441. [2020-10-26 23:26:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2020-10-26 23:26:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 2696 transitions. [2020-10-26 23:26:02,401 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 2696 transitions. Word has length 621 [2020-10-26 23:26:02,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:26:02,402 INFO L481 AbstractCegarLoop]: Abstraction has 2441 states and 2696 transitions. [2020-10-26 23:26:02,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:26:02,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 2696 transitions. [2020-10-26 23:26:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2020-10-26 23:26:02,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:26:02,429 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-10-26 23:26:02,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 23:26:02,429 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:26:02,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:26:02,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1004588374, now seen corresponding path program 1 times [2020-10-26 23:26:02,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:26:02,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066977084] [2020-10-26 23:26:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:26:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:02,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:02,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:02,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:04,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:05,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:07,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:07,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 776 [2020-10-26 23:26:07,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 23:26:07,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-26 23:26:07,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 23:26:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-26 23:26:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-26 23:26:07,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:07,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:26:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:07,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:07,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:07,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:26:07,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 23:26:07,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:26:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:26:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:07,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:07,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:07,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 23:26:07,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 23:26:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:26:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:07,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:08,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:08,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:26:08,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-26 23:26:08,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:26:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 23:26:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:08,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:26:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:08,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:08,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:08,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:08,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:08,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:26:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-26 23:26:08,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 23:26:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:08,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-26 23:26:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:08,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:08,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 23:26:08,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-26 23:26:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-26 23:26:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:08,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-26 23:26:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:08,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:08,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:08,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2020-10-26 23:26:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:08,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:08,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:08,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:26:08,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:08,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 23:26:08,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:26:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:08,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 643 proven. 381 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2020-10-26 23:26:09,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066977084] [2020-10-26 23:26:09,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:09,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 23:26:09,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352186358] [2020-10-26 23:26:09,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 23:26:09,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:09,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 23:26:09,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 23:26:09,342 INFO L87 Difference]: Start difference. First operand 2441 states and 2696 transitions. Second operand 8 states. [2020-10-26 23:26:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:26:12,770 INFO L93 Difference]: Finished difference Result 4736 states and 5275 transitions. [2020-10-26 23:26:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 23:26:12,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 754 [2020-10-26 23:26:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:26:12,784 INFO L225 Difference]: With dead ends: 4736 [2020-10-26 23:26:12,784 INFO L226 Difference]: Without dead ends: 2667 [2020-10-26 23:26:12,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-26 23:26:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2020-10-26 23:26:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2627. [2020-10-26 23:26:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2627 states. [2020-10-26 23:26:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 2890 transitions. [2020-10-26 23:26:12,870 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 2890 transitions. Word has length 754 [2020-10-26 23:26:12,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:26:12,871 INFO L481 AbstractCegarLoop]: Abstraction has 2627 states and 2890 transitions. [2020-10-26 23:26:12,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 23:26:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 2890 transitions. [2020-10-26 23:26:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-10-26 23:26:12,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:26:12,883 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:26:12,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 23:26:12,884 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:26:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:26:12,884 INFO L82 PathProgramCache]: Analyzing trace with hash -38515752, now seen corresponding path program 1 times [2020-10-26 23:26:12,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:26:12,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966985334] [2020-10-26 23:26:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:26:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:13,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:13,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:13,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:14,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:18,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:18,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 809 [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-26 23:26:18,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:18,349 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-10-26 23:26:18,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:26:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:18,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:18,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:18,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:26:18,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:18,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 23:26:18,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:18,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:18,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:26:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:18,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:18,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:18,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:18,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:18,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 23:26:18,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:18,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:18,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:26:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:18,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:18,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:18,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:26:18,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:18,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 23:26:18,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:26:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:18,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:18,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:18,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:26:18,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:18,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 23:26:18,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:18,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:26:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:18,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:18,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 23:26:18,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-26 23:26:18,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:26:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-26 23:26:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:18,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-26 23:26:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:18,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:19,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:19,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:19,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:26:19,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:26:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 473 [2020-10-26 23:26:19,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:19,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:26:19,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-26 23:26:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:19,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:19,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:19,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:26:19,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 23:26:19,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:26:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 700 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-26 23:26:19,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966985334] [2020-10-26 23:26:19,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:19,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 23:26:19,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550987323] [2020-10-26 23:26:19,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 23:26:19,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:19,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 23:26:19,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 23:26:19,987 INFO L87 Difference]: Start difference. First operand 2627 states and 2890 transitions. Second operand 8 states. [2020-10-26 23:26:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:26:22,626 INFO L93 Difference]: Finished difference Result 5098 states and 5658 transitions. [2020-10-26 23:26:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 23:26:22,627 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 787 [2020-10-26 23:26:22,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:26:22,639 INFO L225 Difference]: With dead ends: 5098 [2020-10-26 23:26:22,639 INFO L226 Difference]: Without dead ends: 2843 [2020-10-26 23:26:22,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-26 23:26:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2020-10-26 23:26:22,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2809. [2020-10-26 23:26:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2809 states. [2020-10-26 23:26:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 3074 transitions. [2020-10-26 23:26:22,725 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 3074 transitions. Word has length 787 [2020-10-26 23:26:22,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:26:22,727 INFO L481 AbstractCegarLoop]: Abstraction has 2809 states and 3074 transitions. [2020-10-26 23:26:22,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 23:26:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 3074 transitions. [2020-10-26 23:26:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2020-10-26 23:26:22,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:26:22,738 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:26:22,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 23:26:22,738 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:26:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:26:22,739 INFO L82 PathProgramCache]: Analyzing trace with hash -898778828, now seen corresponding path program 1 times [2020-10-26 23:26:22,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:26:22,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795653687] [2020-10-26 23:26:22,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:26:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:23,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:23,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:25,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:26,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:27,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 827 [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-26 23:26:27,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:26:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:26:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:26:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:26:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:26:28,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 23:26:28,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:28,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:26:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:26:28,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-26 23:26:28,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:26:28,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-26 23:26:28,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:26:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-26 23:26:28,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-26 23:26:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:26:28,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 23:26:28,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-26 23:26:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:28,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 700 [2020-10-26 23:26:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:28,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 547 proven. 247 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2020-10-26 23:26:29,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795653687] [2020-10-26 23:26:29,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:29,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 23:26:29,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100593011] [2020-10-26 23:26:29,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 23:26:29,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:29,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 23:26:29,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 23:26:29,183 INFO L87 Difference]: Start difference. First operand 2809 states and 3074 transitions. Second operand 8 states. [2020-10-26 23:26:32,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:26:32,297 INFO L93 Difference]: Finished difference Result 7298 states and 8249 transitions. [2020-10-26 23:26:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 23:26:32,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 805 [2020-10-26 23:26:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:26:32,316 INFO L225 Difference]: With dead ends: 7298 [2020-10-26 23:26:32,316 INFO L226 Difference]: Without dead ends: 4861 [2020-10-26 23:26:32,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 23:26:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4861 states. [2020-10-26 23:26:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4861 to 4307. [2020-10-26 23:26:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4307 states. [2020-10-26 23:26:32,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 4787 transitions. [2020-10-26 23:26:32,442 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 4787 transitions. Word has length 805 [2020-10-26 23:26:32,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:26:32,443 INFO L481 AbstractCegarLoop]: Abstraction has 4307 states and 4787 transitions. [2020-10-26 23:26:32,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 23:26:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 4787 transitions. [2020-10-26 23:26:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2020-10-26 23:26:32,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:26:32,457 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:26:32,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 23:26:32,457 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:26:32,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:26:32,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1314544019, now seen corresponding path program 1 times [2020-10-26 23:26:32,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:26:32,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393523239] [2020-10-26 23:26:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:26:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:32,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:32,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:32,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:34,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:37,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:37,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 910 [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-26 23:26:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:37,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:26:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:37,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:37,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:37,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:26:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:37,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:37,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:37,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:26:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:37,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:37,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:38,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:26:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:38,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:38,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:38,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:26:38,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 23:26:38,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:38,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:38,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:26:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:38,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:38,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:26:38,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 23:26:38,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:38,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:38,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:38,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-26 23:26:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:38,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:38,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:38,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:26:38,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-26 23:26:38,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:26:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-26 23:26:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:38,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-26 23:26:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:38,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:38,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:26:38,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:38,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-26 23:26:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:38,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:38,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:26:38,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:38,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 23:26:38,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:38,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:26:38,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:38,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2243 backedges. 836 proven. 73 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2020-10-26 23:26:39,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393523239] [2020-10-26 23:26:39,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:39,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:26:39,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041661340] [2020-10-26 23:26:39,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:26:39,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:39,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:26:39,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:26:39,095 INFO L87 Difference]: Start difference. First operand 4307 states and 4787 transitions. Second operand 7 states. [2020-10-26 23:26:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:26:41,437 INFO L93 Difference]: Finished difference Result 9548 states and 10808 transitions. [2020-10-26 23:26:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 23:26:41,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 886 [2020-10-26 23:26:41,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:26:41,461 INFO L225 Difference]: With dead ends: 9548 [2020-10-26 23:26:41,462 INFO L226 Difference]: Without dead ends: 5613 [2020-10-26 23:26:41,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 23:26:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5613 states. [2020-10-26 23:26:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5613 to 5423. [2020-10-26 23:26:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5423 states. [2020-10-26 23:26:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 6113 transitions. [2020-10-26 23:26:41,619 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 6113 transitions. Word has length 886 [2020-10-26 23:26:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:26:41,621 INFO L481 AbstractCegarLoop]: Abstraction has 5423 states and 6113 transitions. [2020-10-26 23:26:41,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:26:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 6113 transitions. [2020-10-26 23:26:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2020-10-26 23:26:41,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:26:41,638 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 23:26:41,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 23:26:41,638 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:26:41,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:26:41,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1863205009, now seen corresponding path program 1 times [2020-10-26 23:26:41,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:26:41,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118146826] [2020-10-26 23:26:41,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:26:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:42,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:42,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:46,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:46,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 984 [2020-10-26 23:26:46,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 23:26:46,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-26 23:26:46,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:46,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 23:26:46,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-26 23:26:46,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-26 23:26:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:26:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:26:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:47,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:47,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:47,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 23:26:47,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:47,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:26:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:47,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:26:47,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:47,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 23:26:47,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:47,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:26:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:26:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 23:26:47,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:47,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 23:26:47,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-26 23:26:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:47,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-26 23:26:47,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 23:26:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:26:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-26 23:26:47,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:47,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-26 23:26:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:47,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:47,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:48,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:48,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:26:48,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:26:48,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-26 23:26:48,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:26:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:48,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-26 23:26:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:48,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:48,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:48,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:26:48,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 23:26:48,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:26:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:48,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2488 backedges. 910 proven. 73 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2020-10-26 23:26:49,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118146826] [2020-10-26 23:26:49,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:49,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 23:26:49,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437775021] [2020-10-26 23:26:49,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 23:26:49,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:49,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 23:26:49,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 23:26:49,720 INFO L87 Difference]: Start difference. First operand 5423 states and 6113 transitions. Second operand 8 states. [2020-10-26 23:26:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:26:52,190 INFO L93 Difference]: Finished difference Result 10664 states and 12081 transitions. [2020-10-26 23:26:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 23:26:52,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 960 [2020-10-26 23:26:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:26:52,214 INFO L225 Difference]: With dead ends: 10664 [2020-10-26 23:26:52,214 INFO L226 Difference]: Without dead ends: 5613 [2020-10-26 23:26:52,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-26 23:26:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5613 states. [2020-10-26 23:26:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5613 to 5607. [2020-10-26 23:26:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5607 states. [2020-10-26 23:26:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5607 states to 5607 states and 6310 transitions. [2020-10-26 23:26:52,439 INFO L78 Accepts]: Start accepts. Automaton has 5607 states and 6310 transitions. Word has length 960 [2020-10-26 23:26:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:26:52,440 INFO L481 AbstractCegarLoop]: Abstraction has 5607 states and 6310 transitions. [2020-10-26 23:26:52,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 23:26:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5607 states and 6310 transitions. [2020-10-26 23:26:52,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2020-10-26 23:26:52,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:26:52,455 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:26:52,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 23:26:52,456 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:26:52,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:26:52,456 INFO L82 PathProgramCache]: Analyzing trace with hash -792064728, now seen corresponding path program 1 times [2020-10-26 23:26:52,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:26:52,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581271693] [2020-10-26 23:26:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:26:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:52,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:52,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:54,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:56,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:56,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 988 [2020-10-26 23:26:56,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 23:26:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4362 [2020-10-26 23:26:56,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-26 23:26:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-26 23:26:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:26:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:26:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 23:26:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:26:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:26:57,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 23:26:57,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:26:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:26:57,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 23:26:57,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:26:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:26:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:26:57,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 23:26:57,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-26 23:26:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-26 23:26:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:26:57,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-26 23:26:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-26 23:26:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-26 23:26:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:26:57,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:26:57,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:26:57,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:26:57,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:26:57,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 23:26:57,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:26:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:26:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:26:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 23:26:57,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:26:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2804 backedges. 775 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-26 23:26:58,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581271693] [2020-10-26 23:26:58,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:26:58,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:26:58,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176653] [2020-10-26 23:26:58,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:26:58,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:26:58,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:26:58,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:26:58,851 INFO L87 Difference]: Start difference. First operand 5607 states and 6310 transitions. Second operand 7 states. [2020-10-26 23:27:01,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:27:01,205 INFO L93 Difference]: Finished difference Result 10848 states and 12249 transitions. [2020-10-26 23:27:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 23:27:01,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 962 [2020-10-26 23:27:01,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:27:01,227 INFO L225 Difference]: With dead ends: 10848 [2020-10-26 23:27:01,227 INFO L226 Difference]: Without dead ends: 5613 [2020-10-26 23:27:01,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 23:27:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5613 states. [2020-10-26 23:27:01,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5613 to 5605. [2020-10-26 23:27:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5605 states. [2020-10-26 23:27:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5605 states to 5605 states and 6185 transitions. [2020-10-26 23:27:01,373 INFO L78 Accepts]: Start accepts. Automaton has 5605 states and 6185 transitions. Word has length 962 [2020-10-26 23:27:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:27:01,375 INFO L481 AbstractCegarLoop]: Abstraction has 5605 states and 6185 transitions. [2020-10-26 23:27:01,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:27:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5605 states and 6185 transitions. [2020-10-26 23:27:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2020-10-26 23:27:01,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:27:01,394 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:27:01,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 23:27:01,394 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:27:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:27:01,395 INFO L82 PathProgramCache]: Analyzing trace with hash 141902125, now seen corresponding path program 1 times [2020-10-26 23:27:01,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:27:01,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534517411] [2020-10-26 23:27:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:27:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:01,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:01,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:05,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:06,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1069 [2020-10-26 23:27:06,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 23:27:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-26 23:27:06,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 23:27:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-26 23:27:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-26 23:27:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:06,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:27:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:06,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:06,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:27:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:06,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:06,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:06,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:27:06,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:06,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 23:27:06,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:06,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:06,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:06,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:06,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:27:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:06,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:06,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:06,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:27:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 23:27:06,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:06,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:27:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:07,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:27:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:07,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-26 23:27:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:27:07,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 23:27:07,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:07,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-26 23:27:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 23:27:07,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 23:27:07,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:27:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 23:27:07,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:07,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-26 23:27:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:27:07,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-26 23:27:07,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 23:27:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:27:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-26 23:27:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 23:27:07,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-26 23:27:07,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:07,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 23:27:07,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:07,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-26 23:27:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:07,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:27:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3459 backedges. 1451 proven. 146 refuted. 0 times theorem prover too weak. 1862 trivial. 0 not checked. [2020-10-26 23:27:08,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534517411] [2020-10-26 23:27:08,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:27:08,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 23:27:08,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112912233] [2020-10-26 23:27:08,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 23:27:08,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:27:08,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 23:27:08,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-26 23:27:08,785 INFO L87 Difference]: Start difference. First operand 5605 states and 6185 transitions. Second operand 9 states. [2020-10-26 23:27:12,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:27:12,617 INFO L93 Difference]: Finished difference Result 12316 states and 13672 transitions. [2020-10-26 23:27:12,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-26 23:27:12,618 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1041 [2020-10-26 23:27:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:27:12,642 INFO L225 Difference]: With dead ends: 12316 [2020-10-26 23:27:12,642 INFO L226 Difference]: Without dead ends: 7083 [2020-10-26 23:27:12,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-26 23:27:12,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7083 states. [2020-10-26 23:27:12,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7083 to 6895. [2020-10-26 23:27:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6895 states. [2020-10-26 23:27:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 7583 transitions. [2020-10-26 23:27:12,805 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 7583 transitions. Word has length 1041 [2020-10-26 23:27:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:27:12,806 INFO L481 AbstractCegarLoop]: Abstraction has 6895 states and 7583 transitions. [2020-10-26 23:27:12,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 23:27:12,806 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 7583 transitions. [2020-10-26 23:27:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1090 [2020-10-26 23:27:12,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:27:12,825 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:27:12,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 23:27:12,825 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:27:12,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:27:12,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2095548485, now seen corresponding path program 1 times [2020-10-26 23:27:12,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:27:12,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662583594] [2020-10-26 23:27:12,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:27:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:13,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:13,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:17,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1117 [2020-10-26 23:27:18,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 23:27:18,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-26 23:27:18,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 23:27:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-26 23:27:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 387 [2020-10-26 23:27:18,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:27:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:27:18,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 23:27:18,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:18,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:27:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:27:18,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 23:27:18,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:27:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:18,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:27:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:18,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:27:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:27:18,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 23:27:18,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:18,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:18,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-26 23:27:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-26 23:27:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 23:27:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-26 23:27:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:18,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:18,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:27:18,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:18,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-26 23:27:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:18,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:19,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-26 23:27:19,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:19,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-26 23:27:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:19,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:19,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 23:27:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 2159 proven. 164 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2020-10-26 23:27:20,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662583594] [2020-10-26 23:27:20,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:27:20,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 23:27:20,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846320452] [2020-10-26 23:27:20,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 23:27:20,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:27:20,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 23:27:20,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-26 23:27:20,428 INFO L87 Difference]: Start difference. First operand 6895 states and 7583 transitions. Second operand 11 states. [2020-10-26 23:27:24,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:27:24,567 INFO L93 Difference]: Finished difference Result 13610 states and 14990 transitions. [2020-10-26 23:27:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 23:27:24,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1089 [2020-10-26 23:27:24,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:27:24,592 INFO L225 Difference]: With dead ends: 13610 [2020-10-26 23:27:24,592 INFO L226 Difference]: Without dead ends: 7087 [2020-10-26 23:27:24,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-26 23:27:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7087 states. [2020-10-26 23:27:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7087 to 6897. [2020-10-26 23:27:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6897 states. [2020-10-26 23:27:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 7572 transitions. [2020-10-26 23:27:24,760 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 7572 transitions. Word has length 1089 [2020-10-26 23:27:24,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:27:24,762 INFO L481 AbstractCegarLoop]: Abstraction has 6897 states and 7572 transitions. [2020-10-26 23:27:24,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 23:27:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 7572 transitions. [2020-10-26 23:27:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2020-10-26 23:27:24,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:27:24,789 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:27:24,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 23:27:24,789 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:27:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:27:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1436733616, now seen corresponding path program 1 times [2020-10-26 23:27:24,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:27:24,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168889008] [2020-10-26 23:27:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:27:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:25,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:25,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:26,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:28,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1209 [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-26 23:27:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:27:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:27:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 23:27:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:27:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:27:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:27:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:27:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-26 23:27:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:27:30,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-26 23:27:30,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:27:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-26 23:27:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-26 23:27:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:27:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 23:27:30,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 23:27:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2020-10-26 23:27:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 23:27:30,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 23:27:30,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-26 23:27:30,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 816 [2020-10-26 23:27:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-26 23:27:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-26 23:27:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 23:27:30,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 23:27:30,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-26 23:27:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:30,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1074 [2020-10-26 23:27:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:30,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:30,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:27:30,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:30,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 23:27:30,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:27:30,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:30,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4440 backedges. 800 proven. 305 refuted. 0 times theorem prover too weak. 3335 trivial. 0 not checked. [2020-10-26 23:27:31,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168889008] [2020-10-26 23:27:31,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:27:31,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:27:31,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788180423] [2020-10-26 23:27:31,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:27:31,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:27:31,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:27:31,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:27:31,577 INFO L87 Difference]: Start difference. First operand 6897 states and 7572 transitions. Second operand 7 states. [2020-10-26 23:27:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:27:34,920 INFO L93 Difference]: Finished difference Result 14890 states and 16398 transitions. [2020-10-26 23:27:34,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 23:27:34,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1179 [2020-10-26 23:27:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:27:34,952 INFO L225 Difference]: With dead ends: 14890 [2020-10-26 23:27:34,953 INFO L226 Difference]: Without dead ends: 8365 [2020-10-26 23:27:34,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 23:27:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8365 states. [2020-10-26 23:27:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8365 to 8177. [2020-10-26 23:27:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8177 states. [2020-10-26 23:27:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8177 states to 8177 states and 8868 transitions. [2020-10-26 23:27:35,143 INFO L78 Accepts]: Start accepts. Automaton has 8177 states and 8868 transitions. Word has length 1179 [2020-10-26 23:27:35,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:27:35,144 INFO L481 AbstractCegarLoop]: Abstraction has 8177 states and 8868 transitions. [2020-10-26 23:27:35,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:27:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 8177 states and 8868 transitions. [2020-10-26 23:27:35,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2020-10-26 23:27:35,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:27:35,173 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:27:35,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 23:27:35,173 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:27:35,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:27:35,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1170426699, now seen corresponding path program 1 times [2020-10-26 23:27:35,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:27:35,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886277041] [2020-10-26 23:27:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:27:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:35,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:35,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:40,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:40,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1229 [2020-10-26 23:27:40,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 23:27:40,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5226 [2020-10-26 23:27:40,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 850 [2020-10-26 23:27:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-26 23:27:40,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:27:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:40,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:40,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:40,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:27:40,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:40,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 23:27:40,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:40,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:40,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:27:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:40,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:40,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:40,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:27:40,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:40,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 23:27:40,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:40,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:27:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:40,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:27:41,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 23:27:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:27:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:27:41,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 23:27:41,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:27:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-26 23:27:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-26 23:27:41,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 23:27:41,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:41,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-26 23:27:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-26 23:27:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-26 23:27:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:27:41,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-26 23:27:41,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 23:27:41,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2020-10-26 23:27:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:41,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:41,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 23:27:41,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 23:27:41,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-26 23:27:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:41,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-26 23:27:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:42,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:42,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-26 23:27:42,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:42,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 23:27:42,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:42,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:42,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-26 23:27:42,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:42,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4070 backedges. 1164 proven. 149 refuted. 0 times theorem prover too weak. 2757 trivial. 0 not checked. [2020-10-26 23:27:43,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886277041] [2020-10-26 23:27:43,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:27:43,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 23:27:43,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578593698] [2020-10-26 23:27:43,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 23:27:43,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:27:43,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 23:27:43,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 23:27:43,578 INFO L87 Difference]: Start difference. First operand 8177 states and 8868 transitions. Second operand 8 states. [2020-10-26 23:27:46,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:27:46,744 INFO L93 Difference]: Finished difference Result 17822 states and 19458 transitions. [2020-10-26 23:27:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 23:27:46,745 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1201 [2020-10-26 23:27:46,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:27:46,772 INFO L225 Difference]: With dead ends: 17822 [2020-10-26 23:27:46,773 INFO L226 Difference]: Without dead ends: 9833 [2020-10-26 23:27:46,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 23:27:46,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2020-10-26 23:27:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 9647. [2020-10-26 23:27:47,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9647 states. [2020-10-26 23:27:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9647 states to 9647 states and 10304 transitions. [2020-10-26 23:27:47,086 INFO L78 Accepts]: Start accepts. Automaton has 9647 states and 10304 transitions. Word has length 1201 [2020-10-26 23:27:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:27:47,087 INFO L481 AbstractCegarLoop]: Abstraction has 9647 states and 10304 transitions. [2020-10-26 23:27:47,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 23:27:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9647 states and 10304 transitions. [2020-10-26 23:27:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1348 [2020-10-26 23:27:47,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 23:27:47,115 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 23:27:47,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 23:27:47,115 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 23:27:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 23:27:47,116 INFO L82 PathProgramCache]: Analyzing trace with hash -875876387, now seen corresponding path program 1 times [2020-10-26 23:27:47,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 23:27:47,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273675439] [2020-10-26 23:27:47,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 23:27:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:47,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:47,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:51,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1379 [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-26 23:27:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 23:27:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:52,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 23:27:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:52,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 23:27:52,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 23:27:52,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:52,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 23:27:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:52,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 23:27:52,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 23:27:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:52,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-26 23:27:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:52,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-26 23:27:52,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:52,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-26 23:27:52,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:52,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:52,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-26 23:27:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:52,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:52,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-26 23:27:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:52,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-26 23:27:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:52,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:52,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:52,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 23:27:52,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:52,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 23:27:52,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:53,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-26 23:27:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:53,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:53,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:53,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 23:27:53,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:53,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 23:27:53,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:53,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-26 23:27:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:53,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:53,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 23:27:53,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 23:27:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:53,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:53,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-26 23:27:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:53,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:53,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:53,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-26 23:27:53,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 23:27:53,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:53,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:53,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-26 23:27:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:53,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 23:27:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-26 23:27:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-26 23:27:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:53,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:53,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-26 23:27:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:53,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-26 23:27:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 23:27:53,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 23:27:53,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 23:27:53,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 23:27:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5785 backedges. 1355 proven. 82 refuted. 0 times theorem prover too weak. 4348 trivial. 0 not checked. [2020-10-26 23:27:54,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273675439] [2020-10-26 23:27:54,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 23:27:54,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 23:27:54,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824726466] [2020-10-26 23:27:54,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 23:27:54,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 23:27:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 23:27:54,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 23:27:54,479 INFO L87 Difference]: Start difference. First operand 9647 states and 10304 transitions. Second operand 7 states. [2020-10-26 23:27:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 23:27:56,844 INFO L93 Difference]: Finished difference Result 20577 states and 22040 transitions. [2020-10-26 23:27:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 23:27:56,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1347 [2020-10-26 23:27:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 23:27:56,847 INFO L225 Difference]: With dead ends: 20577 [2020-10-26 23:27:56,847 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 23:27:56,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 23:27:56,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 23:27:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 23:27:56,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 23:27:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 23:27:56,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1347 [2020-10-26 23:27:56,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 23:27:56,869 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 23:27:56,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 23:27:56,869 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 23:27:56,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 23:27:56,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 23:27:56,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 23:27:57,924 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 286 DAG size of output: 255 [2020-10-26 23:27:59,509 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 252 [2020-10-26 23:28:01,304 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 263 DAG size of output: 56 [2020-10-26 23:28:01,461 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 28 [2020-10-26 23:28:03,980 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 369 DAG size of output: 71 [2020-10-26 23:28:05,499 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 260 DAG size of output: 56 [2020-10-26 23:28:06,484 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 53 [2020-10-26 23:28:06,489 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 23:28:06,489 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 23:28:06,489 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 23:28:06,489 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 23:28:06,490 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 23:28:06,490 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~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)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-26 23:28:06,490 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 23:28:06,490 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-26 23:28:06,490 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 23:28:06,491 INFO L270 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (let ((.cse6 (= 8 |old(~a21~0)|))) (let ((.cse5 (not .cse6)) (.cse0 (not (<= 8 |old(~a15~0)|))) (.cse3 (not (<= 42 |old(~a12~0)|))) (.cse4 (= 6 |old(~a15~0)|)) (.cse1 (not (= |old(~a24~0)| 1))) (.cse2 (not (<= |old(~a15~0)| 8)))) (and (or (not (<= 10 |old(~a21~0)|)) .cse0) (or .cse1 .cse2 (not (<= 0 (+ |old(~a12~0)| 41))) (not (<= |old(~a12~0)| 75))) (or .cse1 (not (<= |old(~a12~0)| 73282)) .cse3) (or .cse1 .cse2 .cse4) (or .cse5 .cse0) (or .cse1 .cse5) (or .cse0 .cse3) (or .cse6 .cse2 (= 9 |old(~a21~0)|) .cse4 (not (<= |old(~a12~0)| 2))) (or .cse1 (not (<= |old(~a21~0)| 9)) .cse2 (not (<= 9 |old(~a21~0)|)))))) [2020-10-26 23:28:06,491 INFO L274 CegarLoopResult]: For program point L102-1(line 102) no Hoare annotation was computed. [2020-10-26 23:28:06,491 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 23:28:06,491 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-26 23:28:06,491 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 23:28:06,492 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 23:28:06,493 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 23:28:06,494 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,495 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,496 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-26 23:28:06,497 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-26 23:28:06,498 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-26 23:28:06,499 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= ~a24~0 1)) (.cse6 (= ~a12~0 |old(~a12~0)|)) (.cse7 (= ~a15~0 |old(~a15~0)|)) (.cse13 (= 8 |old(~a21~0)|))) (let ((.cse2 (not (<= 42 |old(~a12~0)|))) (.cse8 (not .cse13)) (.cse5 (= ~a21~0 8)) (.cse9 (not (<= 8 |old(~a15~0)|))) (.cse0 (not (= |old(~a24~0)| 1))) (.cse1 (and .cse14 .cse11 .cse6 .cse7)) (.cse10 (and .cse4 .cse14 .cse6 .cse7)) (.cse3 (not (<= |old(~a15~0)| 8))) (.cse12 (= 6 |old(~a15~0)|))) (and (or .cse0 (not (<= |old(~a12~0)| 73282)) .cse1 .cse2) (or .cse0 .cse1 .cse3 (not (<= 0 (+ |old(~a12~0)| 41))) (not (<= |old(~a12~0)| 75))) (or .cse0 (not (<= |old(~a21~0)| 9)) .cse1 .cse3 (not (<= 9 |old(~a21~0)|))) (or (and .cse4 .cse5 .cse6 .cse7) .cse8 .cse9) (or .cse10 .cse9 .cse2) (or .cse0 .cse8 (and .cse11 .cse5 .cse6 .cse7)) (or (not (<= 10 |old(~a21~0)|)) .cse10 .cse9) (or .cse0 .cse1 .cse3 .cse12) (or .cse13 .cse10 .cse3 (= 9 |old(~a21~0)|) .cse12 (not (<= |old(~a12~0)| 2)))))) [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-26 23:28:06,500 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 23:28:06,501 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-26 23:28:06,502 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 23:28:06,503 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 23:28:06,504 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 23:28:06,505 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 23:28:06,506 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-26 23:28:06,507 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-26 23:28:06,508 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 23:28:06,509 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-26 23:28:06,510 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-26 23:28:06,511 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-26 23:28:06,512 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-26 23:28:06,513 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0) (= (+ ~a12~0 49) 0)) [2020-10-26 23:28:06,514 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 23:28:06,514 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 23:28:06,514 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|))) [2020-10-26 23:28:06,515 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse0 (<= 8 ~a15~0)) (.cse2 (= ~a24~0 1)) (.cse4 (not (= ~a15~0 6))) (.cse3 (<= ~a15~0 8)) (.cse1 (= ~a21~0 8))) (or (not (= (+ |old(~a12~0)| 49) 0)) (not (= 7 |old(~a21~0)|)) (and .cse0 .cse1) (and (<= 0 (+ ~a12~0 41)) .cse2 .cse3 (<= ~a12~0 73282)) (not (= |old(~a24~0)| 1)) (and .cse4 .cse2 .cse3) (and .cse0 (<= 10 ~a21~0)) (not (= 8 |old(~a15~0)|)) (and .cse2 .cse1) (and .cse0 (<= 42 ~a12~0)) (and (<= 9 ~a21~0) .cse2 .cse3 (<= ~a21~0 9)) (and (<= ~a12~0 2) .cse4 .cse3 (not (= ~a21~0 9)) (not .cse1)))) [2020-10-26 23:28:06,515 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-26 23:28:06,515 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-26 23:28:06,515 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-26 23:28:06,515 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (<= 8 ~a15~0)) (.cse2 (= ~a24~0 1)) (.cse4 (not (= ~a15~0 6))) (.cse3 (<= ~a15~0 8)) (.cse1 (= ~a21~0 8))) (or (not (= (+ |old(~a12~0)| 49) 0)) (not (= 7 |old(~a21~0)|)) (and .cse0 .cse1) (and (<= 0 (+ ~a12~0 41)) .cse2 .cse3 (<= ~a12~0 73282)) (not (= |old(~a24~0)| 1)) (and .cse4 .cse2 .cse3) (and .cse0 (<= 10 ~a21~0)) (not (= 8 |old(~a15~0)|)) (and .cse2 .cse1) (and .cse0 (<= 42 ~a12~0)) (and (<= 9 ~a21~0) .cse2 .cse3 (<= ~a21~0 9)) (and (<= ~a12~0 2) .cse4 .cse3 (not (= ~a21~0 9)) (not .cse1)))) [2020-10-26 23:28:06,516 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-26 23:28:06,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:28:06 BoogieIcfgContainer [2020-10-26 23:28:06,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 23:28:06,540 INFO L168 Benchmark]: Toolchain (without parser) took 185459.44 ms. Allocated memory was 151.0 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 124.3 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-10-26 23:28:06,541 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 23:28:06,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.30 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 124.3 MB in the end (delta: -715.1 kB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-26 23:28:06,542 INFO L168 Benchmark]: Boogie Preprocessor took 129.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 118.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-26 23:28:06,543 INFO L168 Benchmark]: RCFGBuilder took 1806.94 ms. Allocated memory is still 151.0 MB. Free memory was 118.5 MB in the beginning and 77.2 MB in the end (delta: 41.4 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. [2020-10-26 23:28:06,544 INFO L168 Benchmark]: TraceAbstraction took 182624.55 ms. Allocated memory was 151.0 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 76.6 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-10-26 23:28:06,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 886.30 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 124.3 MB in the end (delta: -715.1 kB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 129.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 118.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1806.94 ms. Allocated memory is still 151.0 MB. Free memory was 118.5 MB in the beginning and 77.2 MB in the end (delta: 41.4 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 182624.55 ms. Allocated memory was 151.0 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 76.6 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. 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: 882]: Loop Invariant Derived loop invariant: ((((((((((!(\old(a12) + 49 == 0) || !(7 == \old(a21))) || (8 <= a15 && a21 == 8)) || (((0 <= a12 + 41 && a24 == 1) && a15 <= 8) && a12 <= 73282)) || !(\old(a24) == 1)) || ((!(a15 == 6) && a24 == 1) && a15 <= 8)) || (8 <= a15 && 10 <= a21)) || !(8 == \old(a15))) || (a24 == 1 && a21 == 8)) || (8 <= a15 && 42 <= a12)) || (((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9)) || ((((a12 <= 2 && !(a15 == 6)) && a15 <= 8) && !(a21 == 9)) && !(a21 == 8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 172.8s, OverallIterations: 19, TraceHistogramMax: 12, AutomataDifference: 55.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 548 SDtfs, 11937 SDslu, 851 SDs, 0 SdLazy, 25602 SolverSat, 3153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 540 GetRequests, 321 SyntacticMatches, 4 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9647occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 1976 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 827 PreInvPairs, 955 NumberOfFragments, 669 HoareAnnotationTreeSize, 827 FomulaSimplifications, 96872 FormulaSimplificationTreeSizeReduction, 2.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 32596 FormulaSimplificationTreeSizeReductionInter, 6.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 102.3s InterpolantComputationTime, 13133 NumberOfCodeBlocks, 13133 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 13114 ConstructedInterpolants, 0 QuantifiedInterpolants, 25692149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 34095/36617 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...