/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=DEEPEST --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/Problem01_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:29:24,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:29:24,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:29:24,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:29:24,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:29:24,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:29:24,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:29:24,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:29:24,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:29:24,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:29:24,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:29:24,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:29:24,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:29:24,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:29:24,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:29:24,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:29:24,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:29:24,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:29:24,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:29:24,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:29:24,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:29:24,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:29:24,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:29:24,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:29:24,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:29:24,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:29:24,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:29:24,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:29:24,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:29:24,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:29:24,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:29:24,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:29:24,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:29:24,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:29:24,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:29:24,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:29:24,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:29:24,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:29:24,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:29:24,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:29:24,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:29:24,436 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 [2020-10-27 15:29:24,478 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:29:24,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:29:24,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:29:24,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:29:24,482 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:29:24,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:29:24,483 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:29:24,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:29:24,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:29:24,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:29:24,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:29:24,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:29:24,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:29:24,486 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:29:24,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:29:24,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:29:24,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:29:24,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:29:24,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:29:24,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:29:24,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:29:24,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:29:24,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:29:24,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:29:24,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:29:24,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:29:24,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:29:24,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:29:24,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:29:24,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:29:24,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:29:25,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:29:25,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:29:25,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:29:25,010 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:29:25,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label01.c [2020-10-27 15:29:25,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0498bdba1/2317b884f94d414292e3723881e37f41/FLAG7bbabb80e [2020-10-27 15:29:25,879 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:29:25,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label01.c [2020-10-27 15:29:25,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0498bdba1/2317b884f94d414292e3723881e37f41/FLAG7bbabb80e [2020-10-27 15:29:26,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0498bdba1/2317b884f94d414292e3723881e37f41 [2020-10-27 15:29:26,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:29:26,134 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:29:26,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:29:26,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:29:26,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:29:26,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e70e563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26, skipping insertion in model container [2020-10-27 15:29:26,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:29:26,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:29:26,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:29:26,627 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:29:26,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:29:26,797 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:29:26,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26 WrapperNode [2020-10-27 15:29:26,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:29:26,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:29:26,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:29:26,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:29:26,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (1/1) ... [2020-10-27 15:29:26,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:29:26,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:29:26,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:29:26,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:29:26,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (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 [2020-10-27 15:29:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:29:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:29:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:29:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:29:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:29:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:29:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:29:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:29:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:29:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:29:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:29:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:29:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:29:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:29:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:29:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:29:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:29:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:29:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:29:28,609 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:29:28,610 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:29:28,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:29:28 BoogieIcfgContainer [2020-10-27 15:29:28,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:29:28,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:29:28,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:29:28,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:29:28,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:29:26" (1/3) ... [2020-10-27 15:29:28,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151a3742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:29:28, skipping insertion in model container [2020-10-27 15:29:28,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:26" (2/3) ... [2020-10-27 15:29:28,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151a3742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:29:28, skipping insertion in model container [2020-10-27 15:29:28,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:29:28" (3/3) ... [2020-10-27 15:29:28,622 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label01.c [2020-10-27 15:29:28,634 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:29:28,644 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:29:28,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:29:28,690 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:29:28,690 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:29:28,691 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:29:28,691 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:29:28,691 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:29:28,691 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:29:28,691 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:29:28,691 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:29:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:29:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 15:29:28,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:29:28,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:29:28,730 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:29:28,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:29:28,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1675018535, now seen corresponding path program 1 times [2020-10-27 15:29:28,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:29:28,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524188911] [2020-10-27 15:29:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:29:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:29,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:30,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:30,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 15:29:30,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:29:30,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1870 [2020-10-27 15:29:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 15:29:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:29:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 15:29:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:29:31,721 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2020-10-27 15:29:32,159 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:29:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:29:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:32,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:32,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:32,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:29:32,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 15:29:32,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:29:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:29:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:29:32,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524188911] [2020-10-27 15:29:32,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:29:32,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 15:29:32,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001373475] [2020-10-27 15:29:32,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 15:29:32,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:29:32,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 15:29:32,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:29:32,358 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-27 15:29:32,639 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 15:29:32,852 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 15:29:33,037 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 15:29:33,234 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 15:29:33,734 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-27 15:29:34,154 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-27 15:29:34,834 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-27 15:29:35,563 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-10-27 15:29:36,066 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-27 15:29:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:29:37,354 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-27 15:29:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:29:37,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-10-27 15:29:37,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:29:37,375 INFO L225 Difference]: With dead ends: 479 [2020-10-27 15:29:37,375 INFO L226 Difference]: Without dead ends: 206 [2020-10-27 15:29:37,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:29:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-27 15:29:37,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-27 15:29:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-27 15:29:37,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-27 15:29:37,455 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 98 [2020-10-27 15:29:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:29:37,456 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-27 15:29:37,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 15:29:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-27 15:29:37,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 15:29:37,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:29:37,462 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:29:37,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:29:37,463 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:29:37,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:29:37,464 INFO L82 PathProgramCache]: Analyzing trace with hash 777310839, now seen corresponding path program 1 times [2020-10-27 15:29:37,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:29:37,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851589497] [2020-10-27 15:29:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:29:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:37,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:38,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:39,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:39,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 15:29:39,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:29:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1801 [2020-10-27 15:29:39,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:29:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:29:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 15:29:39,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:29:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:39,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:39,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:39,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:29:39,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:39,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 15:29:39,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:39,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:29:39,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:39,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:29:39,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:39,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:29:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:40,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:40,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:29:40,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:40,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:29:40,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:40,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:29:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:29:40,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:29:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:29:40,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851589497] [2020-10-27 15:29:40,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:29:40,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:29:40,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157623512] [2020-10-27 15:29:40,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:29:40,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:29:40,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:29:40,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:29:40,201 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 13 states. [2020-10-27 15:29:40,559 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 15:29:40,747 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:29:41,359 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-27 15:29:42,347 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2020-10-27 15:29:42,867 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2020-10-27 15:29:43,093 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 15:29:43,538 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2020-10-27 15:29:43,894 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-27 15:29:44,086 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-27 15:29:44,295 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 15:29:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:29:44,741 INFO L93 Difference]: Finished difference Result 435 states and 639 transitions. [2020-10-27 15:29:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 15:29:44,741 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2020-10-27 15:29:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:29:44,748 INFO L225 Difference]: With dead ends: 435 [2020-10-27 15:29:44,753 INFO L226 Difference]: Without dead ends: 295 [2020-10-27 15:29:44,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-27 15:29:44,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-27 15:29:44,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 277. [2020-10-27 15:29:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-27 15:29:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 356 transitions. [2020-10-27 15:29:44,817 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 356 transitions. Word has length 106 [2020-10-27 15:29:44,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:29:44,820 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 356 transitions. [2020-10-27 15:29:44,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:29:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 356 transitions. [2020-10-27 15:29:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 15:29:44,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:29:44,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:29:44,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:29:44,832 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:29:44,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:29:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash -443701354, now seen corresponding path program 1 times [2020-10-27 15:29:44,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:29:44,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096959800] [2020-10-27 15:29:44,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:29:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:44,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:45,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:45,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 15:29:45,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-27 15:29:45,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:29:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 15:29:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 15:29:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:45,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:29:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:45,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:45,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:29:45,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:45,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:29:45,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:29:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:29:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:45,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:29:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:45,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:45,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:45,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:29:45,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:45,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:29:45,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:45,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:29:45,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:45,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 15:29:45,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:29:45,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096959800] [2020-10-27 15:29:45,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:29:45,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:29:45,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423625084] [2020-10-27 15:29:45,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:29:45,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:29:45,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:29:45,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:29:45,436 INFO L87 Difference]: Start difference. First operand 277 states and 356 transitions. Second operand 5 states. [2020-10-27 15:29:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:29:46,896 INFO L93 Difference]: Finished difference Result 627 states and 853 transitions. [2020-10-27 15:29:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:29:46,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-27 15:29:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:29:46,903 INFO L225 Difference]: With dead ends: 627 [2020-10-27 15:29:46,903 INFO L226 Difference]: Without dead ends: 416 [2020-10-27 15:29:46,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:29:46,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-10-27 15:29:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2020-10-27 15:29:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-10-27 15:29:46,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 536 transitions. [2020-10-27 15:29:46,941 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 536 transitions. Word has length 109 [2020-10-27 15:29:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:29:46,942 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 536 transitions. [2020-10-27 15:29:46,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:29:46,942 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 536 transitions. [2020-10-27 15:29:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 15:29:46,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:29:46,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:29:46,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:29:46,945 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:29:46,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:29:46,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1583544541, now seen corresponding path program 1 times [2020-10-27 15:29:46,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:29:46,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117144762] [2020-10-27 15:29:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:29:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:47,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:47,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:50,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:51,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 15:29:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:29:51,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 15:29:51,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:29:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 15:29:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 15:29:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:52,672 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-27 15:29:52,871 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2020-10-27 15:29:53,029 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-10-27 15:29:53,168 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2020-10-27 15:29:53,302 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-10-27 15:29:53,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:29:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:53,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:53,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:29:53,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:53,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:29:53,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:29:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:53,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:29:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:53,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:29:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:53,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:53,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:53,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:29:53,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:53,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:29:53,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:53,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:29:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:29:53,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:53,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:29:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:53,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:53,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:29:53,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:29:53,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:29:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 15:29:53,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:29:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:29:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:29:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:29:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:29:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 15:29:53,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117144762] [2020-10-27 15:29:53,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:29:53,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:29:53,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781476701] [2020-10-27 15:29:53,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:29:53,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:29:53,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:29:53,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:29:53,782 INFO L87 Difference]: Start difference. First operand 416 states and 536 transitions. Second operand 13 states. [2020-10-27 15:29:54,325 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 15:29:54,811 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 144 [2020-10-27 15:29:55,413 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 141 [2020-10-27 15:29:55,967 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-10-27 15:29:56,475 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2020-10-27 15:29:57,375 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 132 [2020-10-27 15:29:58,174 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2020-10-27 15:29:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:29:58,882 INFO L93 Difference]: Finished difference Result 843 states and 1150 transitions. [2020-10-27 15:29:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 15:29:58,883 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 118 [2020-10-27 15:29:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:29:58,888 INFO L225 Difference]: With dead ends: 843 [2020-10-27 15:29:58,888 INFO L226 Difference]: Without dead ends: 493 [2020-10-27 15:29:58,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-27 15:29:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-10-27 15:29:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 489. [2020-10-27 15:29:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-10-27 15:29:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 617 transitions. [2020-10-27 15:29:58,946 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 617 transitions. Word has length 118 [2020-10-27 15:29:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:29:58,947 INFO L481 AbstractCegarLoop]: Abstraction has 489 states and 617 transitions. [2020-10-27 15:29:58,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:29:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 617 transitions. [2020-10-27 15:29:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-27 15:29:58,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:29:58,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:29:58,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:29:58,952 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:29:58,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:29:58,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1978033551, now seen corresponding path program 1 times [2020-10-27 15:29:58,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:29:58,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643002709] [2020-10-27 15:29:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:29:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:29:59,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:59,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:29:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:02,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:04,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:30:04,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 15:30:04,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:30:04,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-27 15:30:04,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 15:30:04,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:30:04,599 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-27 15:30:04,744 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2020-10-27 15:30:04,871 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 37 [2020-10-27 15:30:04,998 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2020-10-27 15:30:05,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:05,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:05,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:05,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:30:05,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:05,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:05,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:05,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:05,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:30:05,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:05,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:05,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:05,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:05,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:05,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:30:05,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 15:30:05,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 15:30:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:30:05,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643002709] [2020-10-27 15:30:05,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:05,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:30:05,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621829064] [2020-10-27 15:30:05,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:30:05,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:05,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:30:05,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:30:05,577 INFO L87 Difference]: Start difference. First operand 489 states and 617 transitions. Second operand 13 states. [2020-10-27 15:30:06,182 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 15:30:06,430 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-27 15:30:07,202 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-10-27 15:30:07,842 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2020-10-27 15:30:08,580 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-10-27 15:30:09,139 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2020-10-27 15:30:09,880 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 127 [2020-10-27 15:30:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:10,225 INFO L93 Difference]: Finished difference Result 986 states and 1309 transitions. [2020-10-27 15:30:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:30:10,230 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-10-27 15:30:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:10,234 INFO L225 Difference]: With dead ends: 986 [2020-10-27 15:30:10,234 INFO L226 Difference]: Without dead ends: 563 [2020-10-27 15:30:10,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:30:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-10-27 15:30:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 561. [2020-10-27 15:30:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-27 15:30:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 698 transitions. [2020-10-27 15:30:10,261 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 698 transitions. Word has length 124 [2020-10-27 15:30:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:10,262 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 698 transitions. [2020-10-27 15:30:10,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:30:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 698 transitions. [2020-10-27 15:30:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 15:30:10,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:30:10,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:30:10,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:30:10,265 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:30:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:30:10,265 INFO L82 PathProgramCache]: Analyzing trace with hash -769658716, now seen corresponding path program 1 times [2020-10-27 15:30:10,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:30:10,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157819527] [2020-10-27 15:30:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:30:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:10,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:10,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:14,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:15,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:15,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 15:30:15,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:15,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:15,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:15,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:15,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:15,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:30:15,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:15,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:15,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:15,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:15,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:15,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:15,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:15,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:15,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:30:15,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:15,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:15,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:15,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 15:30:15,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:30:15,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 15:30:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:30:15,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157819527] [2020-10-27 15:30:15,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:15,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:30:15,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579711536] [2020-10-27 15:30:15,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:30:15,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:15,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:30:15,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:30:15,544 INFO L87 Difference]: Start difference. First operand 561 states and 698 transitions. Second operand 5 states. [2020-10-27 15:30:17,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:17,092 INFO L93 Difference]: Finished difference Result 1332 states and 1729 transitions. [2020-10-27 15:30:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:30:17,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-27 15:30:17,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:17,099 INFO L225 Difference]: With dead ends: 1332 [2020-10-27 15:30:17,099 INFO L226 Difference]: Without dead ends: 837 [2020-10-27 15:30:17,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:30:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-10-27 15:30:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 835. [2020-10-27 15:30:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2020-10-27 15:30:17,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1058 transitions. [2020-10-27 15:30:17,139 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1058 transitions. Word has length 125 [2020-10-27 15:30:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:17,140 INFO L481 AbstractCegarLoop]: Abstraction has 835 states and 1058 transitions. [2020-10-27 15:30:17,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:30:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1058 transitions. [2020-10-27 15:30:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 15:30:17,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:30:17,143 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:30:17,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:30:17,144 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:30:17,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:30:17,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1532805591, now seen corresponding path program 1 times [2020-10-27 15:30:17,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:30:17,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746302625] [2020-10-27 15:30:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:30:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:17,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:17,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:20,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:22,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:22,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 15:30:22,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:22,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4845 [2020-10-27 15:30:22,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:30:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 15:30:22,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:30:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:22,437 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-27 15:30:22,614 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-27 15:30:22,822 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-27 15:30:22,985 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 37 [2020-10-27 15:30:23,147 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2020-10-27 15:30:23,304 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 34 [2020-10-27 15:30:23,463 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 31 [2020-10-27 15:30:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:23,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:23,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:23,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:23,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:23,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:23,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:30:23,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:23,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:23,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:23,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:30:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:30:23,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:30:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:30:23,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746302625] [2020-10-27 15:30:23,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:23,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:30:23,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592921096] [2020-10-27 15:30:23,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:30:23,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:23,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:30:23,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:30:23,783 INFO L87 Difference]: Start difference. First operand 835 states and 1058 transitions. Second operand 13 states. [2020-10-27 15:30:24,357 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 15:30:24,591 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 15:30:25,528 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-10-27 15:30:26,239 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 121 [2020-10-27 15:30:26,729 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2020-10-27 15:30:27,216 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2020-10-27 15:30:27,932 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 117 [2020-10-27 15:30:28,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:28,389 INFO L93 Difference]: Finished difference Result 1670 states and 2177 transitions. [2020-10-27 15:30:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 15:30:28,390 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-10-27 15:30:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:28,396 INFO L225 Difference]: With dead ends: 1670 [2020-10-27 15:30:28,396 INFO L226 Difference]: Without dead ends: 901 [2020-10-27 15:30:28,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-27 15:30:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-10-27 15:30:28,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 897. [2020-10-27 15:30:28,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-10-27 15:30:28,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1134 transitions. [2020-10-27 15:30:28,444 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1134 transitions. Word has length 128 [2020-10-27 15:30:28,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:28,444 INFO L481 AbstractCegarLoop]: Abstraction has 897 states and 1134 transitions. [2020-10-27 15:30:28,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:30:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1134 transitions. [2020-10-27 15:30:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-27 15:30:28,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:30:28,451 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:30:28,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:30:28,451 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:30:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:30:28,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1209253407, now seen corresponding path program 1 times [2020-10-27 15:30:28,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:30:28,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323845602] [2020-10-27 15:30:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:30:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:28,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:28,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:30,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:31,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:31,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3410 [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 15:30:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:32,373 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-27 15:30:32,611 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-27 15:30:32,893 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2020-10-27 15:30:33,168 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-27 15:30:33,426 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 45 [2020-10-27 15:30:33,668 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-27 15:30:33,892 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 37 [2020-10-27 15:30:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:34,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:34,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:34,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:30:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:34,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:34,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:34,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:34,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:34,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:34,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:30:34,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:34,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:34,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:34,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:34,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:34,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 15:30:34,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 15:30:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:30:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:30:34,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323845602] [2020-10-27 15:30:34,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:34,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:30:34,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136037595] [2020-10-27 15:30:34,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:30:34,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:34,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:30:34,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:30:34,212 INFO L87 Difference]: Start difference. First operand 897 states and 1134 transitions. Second operand 13 states. [2020-10-27 15:30:34,681 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-27 15:30:34,993 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 15:30:35,283 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 15:30:36,082 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 146 [2020-10-27 15:30:36,446 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-27 15:30:36,977 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 143 [2020-10-27 15:30:37,693 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 140 [2020-10-27 15:30:38,213 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137 [2020-10-27 15:30:38,947 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 132 [2020-10-27 15:30:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:39,426 INFO L93 Difference]: Finished difference Result 1786 states and 2317 transitions. [2020-10-27 15:30:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 15:30:39,427 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2020-10-27 15:30:39,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:39,434 INFO L225 Difference]: With dead ends: 1786 [2020-10-27 15:30:39,434 INFO L226 Difference]: Without dead ends: 955 [2020-10-27 15:30:39,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-27 15:30:39,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-27 15:30:39,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 951. [2020-10-27 15:30:39,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-10-27 15:30:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1199 transitions. [2020-10-27 15:30:39,476 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1199 transitions. Word has length 132 [2020-10-27 15:30:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:39,477 INFO L481 AbstractCegarLoop]: Abstraction has 951 states and 1199 transitions. [2020-10-27 15:30:39,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:30:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1199 transitions. [2020-10-27 15:30:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-27 15:30:39,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:30:39,481 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:30:39,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:30:39,481 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:30:39,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:30:39,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1152107596, now seen corresponding path program 1 times [2020-10-27 15:30:39,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:30:39,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895462294] [2020-10-27 15:30:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:30:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:39,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:39,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:39,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:43,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:43,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-27 15:30:43,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:43,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4299 [2020-10-27 15:30:43,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:30:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 15:30:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 15:30:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:44,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:44,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:44,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:44,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:44,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:44,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:44,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 15:30:44,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 15:30:44,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 15:30:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:44,521 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:30:44,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895462294] [2020-10-27 15:30:44,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:44,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:30:44,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234002683] [2020-10-27 15:30:44,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:30:44,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:44,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:30:44,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:30:44,524 INFO L87 Difference]: Start difference. First operand 951 states and 1199 transitions. Second operand 13 states. [2020-10-27 15:30:45,025 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 15:30:45,263 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 15:30:45,810 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 15:30:46,272 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 15:30:46,534 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 15:30:46,796 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 15:30:47,232 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 15:30:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:47,555 INFO L93 Difference]: Finished difference Result 1898 states and 2455 transitions. [2020-10-27 15:30:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 15:30:47,559 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 137 [2020-10-27 15:30:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:47,565 INFO L225 Difference]: With dead ends: 1898 [2020-10-27 15:30:47,566 INFO L226 Difference]: Without dead ends: 1013 [2020-10-27 15:30:47,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:30:47,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-10-27 15:30:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 949. [2020-10-27 15:30:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2020-10-27 15:30:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1194 transitions. [2020-10-27 15:30:47,608 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1194 transitions. Word has length 137 [2020-10-27 15:30:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:47,608 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1194 transitions. [2020-10-27 15:30:47,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:30:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1194 transitions. [2020-10-27 15:30:47,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-27 15:30:47,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:30:47,612 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:30:47,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:30:47,613 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:30:47,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:30:47,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1720928800, now seen corresponding path program 1 times [2020-10-27 15:30:47,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:30:47,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033590329] [2020-10-27 15:30:47,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:30:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:47,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:47,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:47,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:48,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:48,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-27 15:30:48,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1185 [2020-10-27 15:30:48,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:30:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-27 15:30:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 15:30:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:48,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:48,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:48,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:48,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:48,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:48,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:48,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:48,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:48,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:48,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:30:48,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:48,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:48,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:49,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:49,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:30:49,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:49,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 15:30:49,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:49,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:49,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:49,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:30:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:30:49,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033590329] [2020-10-27 15:30:49,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:49,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:30:49,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075583658] [2020-10-27 15:30:49,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:30:49,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:49,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:30:49,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:30:49,080 INFO L87 Difference]: Start difference. First operand 949 states and 1194 transitions. Second operand 5 states. [2020-10-27 15:30:49,354 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:30:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:50,883 INFO L93 Difference]: Finished difference Result 2438 states and 3172 transitions. [2020-10-27 15:30:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:30:50,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-27 15:30:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:50,893 INFO L225 Difference]: With dead ends: 2438 [2020-10-27 15:30:50,894 INFO L226 Difference]: Without dead ends: 1555 [2020-10-27 15:30:50,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:30:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2020-10-27 15:30:50,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1501. [2020-10-27 15:30:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2020-10-27 15:30:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1941 transitions. [2020-10-27 15:30:50,979 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1941 transitions. Word has length 143 [2020-10-27 15:30:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:50,980 INFO L481 AbstractCegarLoop]: Abstraction has 1501 states and 1941 transitions. [2020-10-27 15:30:50,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:30:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1941 transitions. [2020-10-27 15:30:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-27 15:30:50,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:30:50,987 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:30:50,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:30:50,987 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:30:50,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:30:50,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1899745679, now seen corresponding path program 1 times [2020-10-27 15:30:50,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:30:50,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224218291] [2020-10-27 15:30:50,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:30:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:51,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:51,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:51,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:52,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:52,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-27 15:30:52,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:30:52,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1740 [2020-10-27 15:30:52,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:30:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-27 15:30:52,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 15:30:52,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:53,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:30:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:53,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:53,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:30:53,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:53,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:30:53,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:53,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:30:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:53,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:53,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:30:53,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:30:53,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:30:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:53,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:53,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:53,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:30:53,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:53,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:30:53,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:30:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:53,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:30:53,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:53,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 15:30:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:30:53,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:30:53,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:30:53,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 15:30:53,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:30:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 15:30:53,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:30:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:30:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:30:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 15:30:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:30:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-27 15:30:53,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224218291] [2020-10-27 15:30:53,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:30:53,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:30:53,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558207687] [2020-10-27 15:30:53,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:30:53,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:30:53,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:30:53,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:30:53,389 INFO L87 Difference]: Start difference. First operand 1501 states and 1941 transitions. Second operand 6 states. [2020-10-27 15:30:54,346 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:30:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:30:54,970 INFO L93 Difference]: Finished difference Result 2873 states and 3745 transitions. [2020-10-27 15:30:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:30:54,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2020-10-27 15:30:54,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:30:54,972 INFO L225 Difference]: With dead ends: 2873 [2020-10-27 15:30:54,973 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:30:54,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:30:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:30:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:30:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:30:54,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:30:54,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2020-10-27 15:30:54,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:30:54,980 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:30:54,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:30:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:30:54,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:30:54,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:30:54,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:30:55,657 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 48 [2020-10-27 15:30:56,246 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 98 [2020-10-27 15:30:58,214 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 266 DAG size of output: 128 [2020-10-27 15:30:58,714 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 93 [2020-10-27 15:30:58,823 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:30:59,180 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2020-10-27 15:30:59,184 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:30:59,185 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:30:59,185 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:30:59,185 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:30:59,185 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:30:59,186 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)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-27 15:30:59,186 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:30:59,186 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,186 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,186 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,187 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,187 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,187 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,187 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-27 15:30:59,187 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-27 15:30:59,187 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-27 15:30:59,188 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-27 15:30:59,189 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,190 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-27 15:30:59,191 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,192 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,193 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-27 15:30:59,194 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-27 15:30:59,195 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-27 15:30:59,196 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-27 15:30:59,197 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L270 CegarLoopResult]: At program point L451(line 451) the Hoare annotation is: (let ((.cse1 (= |old(~a17~0)| 1))) (let ((.cse0 (not (= 6 |old(~a16~0)|))) (.cse7 (not (= |old(~a8~0)| 13))) (.cse6 (= |old(~a7~0)| 1)) (.cse8 (not .cse1)) (.cse9 (not (= 5 |old(~a16~0)|))) (.cse2 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse3 (not (= 15 |old(~a8~0)|))) (.cse4 (not (= |old(~a21~0)| 1))) (.cse5 (not (= ~a12~0 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (= |old(~a20~0)| 1) (or .cse7 (not (= |old(~a17~0)| |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (not (= |old(~a17~0)| |old(~a20~0)|)) .cse0 .cse5) (or .cse7 .cse8 (not (= 0 |old(~a21~0)|)) (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (not .cse6) .cse9 .cse5) (or .cse8 .cse9 .cse2 .cse3 .cse4 .cse5 (not (= |old(~a7~0)| 0))) (not (<= |old(~a17~0)| 0)) (not (= 4 |old(~a16~0)|))))) [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L451-1(line 451) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-27 15:30:59,198 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-27 15:30:59,199 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-27 15:30:59,200 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-27 15:30:59,200 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-27 15:30:59,200 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-27 15:30:59,200 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,200 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse12 (= ~a7~0 |old(~a7~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse19 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse13 (= ~a16~0 |old(~a16~0)|)) (.cse20 (= ~a8~0 |old(~a8~0)|)) (.cse14 (= |old(~a17~0)| 1))) (let ((.cse1 (= ~a21~0 1)) (.cse3 (= ~a8~0 15)) (.cse7 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse8 (not (= 15 |old(~a8~0)|))) (.cse9 (not (= |old(~a21~0)| 1))) (.cse5 (not .cse14)) (.cse4 (= 5 ~a16~0)) (.cse15 (= |old(~a7~0)| 1)) (.cse6 (not (= 5 |old(~a16~0)|))) (.cse16 (not (= |old(~a8~0)| 13))) (.cse11 (not (= 6 |old(~a16~0)|))) (.cse17 (= ~a8~0 13)) (.cse10 (not (= ~a12~0 8))) (.cse18 (and .cse12 .cse0 .cse19 .cse2 .cse13 .cse20))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a7~0 0)) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (not (= |old(~a7~0)| 0))) (or .cse11 (and .cse12 .cse0 .cse1 .cse2 .cse13 .cse3) .cse14 .cse7 .cse8 .cse9 .cse10 .cse15) (or .cse16 .cse5 (not (= 0 |old(~a21~0)|)) (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (and .cse12 .cse0 .cse2 .cse17 (= ~a21~0 0) .cse4) (not .cse15) .cse6 .cse10) (or (= |old(~a20~0)| 1) .cse18) (or .cse16 (not (= |old(~a17~0)| |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (not (= |old(~a17~0)| |old(~a20~0)|)) .cse11 (and .cse12 .cse0 (= ~a21~0 ~a17~0) .cse2 .cse13 .cse17) .cse10) (or (and .cse12 .cse0 .cse19 .cse2 .cse20 (= ~a16~0 4)) (not (= 4 |old(~a16~0)|))) (or .cse18 (not (<= |old(~a17~0)| 0)))))) [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-27 15:30:59,201 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-27 15:30:59,202 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-27 15:30:59,203 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-27 15:30:59,204 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-27 15:30:59,204 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-27 15:30:59,204 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,204 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,204 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,204 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-27 15:30:59,205 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-27 15:30:59,206 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-27 15:30:59,206 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-27 15:30:59,206 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-27 15:30:59,206 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-27 15:30:59,206 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:30:59,206 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a12~0 8) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (<= 5 ~a16~0) (<= ~a8~0 15) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-27 15:30:59,206 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:30:59,206 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:30:59,207 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (not (= |old(~a20~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-27 15:30:59,207 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:30:59,207 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse2 (= ~a8~0 15)) (.cse4 (= ~a16~0 6)) (.cse6 (= ~a7~0 1)) (.cse7 (= ~a8~0 13)) (.cse3 (= 5 ~a16~0)) (.cse5 (= ~a17~0 1))) (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) .cse0 .cse1 .cse2 .cse3 (= ~a7~0 0)) (not (= |old(~a20~0)| 1)) (<= ~a17~0 0) (and .cse0 .cse4 .cse1 (not .cse5) .cse2 (not .cse6)) (and (= ~a21~0 ~a17~0) .cse4 (<= ~a7~0 0) .cse7 .cse5) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (= ~a16~0 4) (and .cse6 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0))) .cse7 (= ~a21~0 0) .cse3 .cse5) (not (= ~a20~0 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-27 15:30:59,207 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-27 15:30:59,207 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-27 15:30:59,208 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (= ~a8~0 13)) (.cse0 (= ~a16~0 6)) (.cse2 (= ~a17~0 1)) (.cse3 (= ~a7~0 1))) (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) (not (= |old(~a20~0)| 1)) (<= ~a17~0 0) (and (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0) (= ~a7~0 0)) (and (= ~a21~0 ~a17~0) .cse0 (<= ~a7~0 0) .cse1 .cse2) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse1 (= ~a21~0 0) (= 5 ~a16~0) .cse2) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a21~0 1) .cse0 (not .cse2) (= ~a8~0 15) (not .cse3)) (= ~a16~0 4) (not (= ~a20~0 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-27 15:30:59,208 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:30:59,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:30:59 BoogieIcfgContainer [2020-10-27 15:30:59,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:30:59,240 INFO L168 Benchmark]: Toolchain (without parser) took 93111.45 ms. Allocated memory was 163.6 MB in the beginning and 830.5 MB in the end (delta: 666.9 MB). Free memory was 136.6 MB in the beginning and 647.6 MB in the end (delta: -511.0 MB). Peak memory consumption was 413.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:30:59,241 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:30:59,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.70 ms. Allocated memory is still 163.6 MB. Free memory was 136.0 MB in the beginning and 109.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:30:59,242 INFO L168 Benchmark]: Boogie Preprocessor took 142.98 ms. Allocated memory is still 163.6 MB. Free memory was 109.1 MB in the beginning and 140.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:30:59,243 INFO L168 Benchmark]: RCFGBuilder took 1669.13 ms. Allocated memory was 163.6 MB in the beginning and 201.3 MB in the end (delta: 37.7 MB). Free memory was 140.6 MB in the beginning and 139.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 8.0 GB. [2020-10-27 15:30:59,247 INFO L168 Benchmark]: TraceAbstraction took 90624.03 ms. Allocated memory was 201.3 MB in the beginning and 830.5 MB in the end (delta: 629.1 MB). Free memory was 138.6 MB in the beginning and 647.6 MB in the end (delta: -509.0 MB). Peak memory consumption was 376.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:30:59,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 662.70 ms. Allocated memory is still 163.6 MB. Free memory was 136.0 MB in the beginning and 109.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.98 ms. Allocated memory is still 163.6 MB. Free memory was 109.1 MB in the beginning and 140.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1669.13 ms. Allocated memory was 163.6 MB in the beginning and 201.3 MB in the end (delta: 37.7 MB). Free memory was 140.6 MB in the beginning and 139.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 67.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 90624.03 ms. Allocated memory was 201.3 MB in the beginning and 830.5 MB in the end (delta: 629.1 MB). Free memory was 138.6 MB in the beginning and 647.6 MB in the end (delta: -509.0 MB). Peak memory consumption was 376.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((!(5 <= \old(a16)) || !(\old(a8) <= 15)) || !(\old(a21) <= 1)) || !(\old(a20) == 1)) || a17 <= 0) || ((((((a17 == \old(a17) && a16 == \old(a16)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a7 == 0)) || ((((a21 == a17 && a16 == 6) && a7 <= 0) && a8 == 13) && a17 == 1)) || !(\old(a17) == 1)) || !(\old(a16) <= 5)) || ((((a7 == 1 && a8 == 13) && a21 == 0) && 5 == a16) && a17 == 1)) || !(15 <= \old(a8))) || !(1 <= \old(a21))) || ((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && !(a7 == 1))) || a16 == 4) || !(a20 == 1)) || !(a12 == 8)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 86.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 38.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 3544 SDslu, 427 SDs, 0 SdLazy, 10392 SolverSat, 730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 27.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1501occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 152 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 169 PreInvPairs, 197 NumberOfFragments, 1074 HoareAnnotationTreeSize, 169 FomulaSimplifications, 1840 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2918 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 45.2s InterpolantComputationTime, 1416 NumberOfCodeBlocks, 1416 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1405 ConstructedInterpolants, 0 QuantifiedInterpolants, 2915153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 374/393 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...