/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/loops/invert_string-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:17:16,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:17:16,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:17:16,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:17:16,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:17:16,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:17:16,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:17:16,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:17:16,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:17:16,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:17:16,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:17:16,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:17:16,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:17:16,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:17:16,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:17:16,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:17:16,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:17:16,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:17:16,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:17:16,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:17:16,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:17:16,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:17:16,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:17:16,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:17:16,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:17:16,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:17:16,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:17:16,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:17:16,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:17:16,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:17:16,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:17:16,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:17:16,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:17:16,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:17:16,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:17:16,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:17:16,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:17:16,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:17:16,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:17:16,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:17:16,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:17:16,485 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 [2020-10-28 15:17:16,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:17:16,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:17:16,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:17:16,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:17:16,542 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:17:16,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:17:16,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:17:16,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:17:16,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:17:16,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:17:16,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:17:16,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:17:16,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:17:16,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:17:16,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:17:16,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:17:16,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:17:16,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:17:16,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:17:16,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:17:16,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:17:16,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:17:16,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:17:16,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:17:16,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:17:16,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:17:16,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:17:16,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:17:16,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:17:16,548 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:17:17,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:17:17,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:17:17,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:17:17,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:17:17,098 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:17:17,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/invert_string-3.c [2020-10-28 15:17:17,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c10f27d2/330b034d33aa4cf9933bd25d7cae3366/FLAG5d823ae3f [2020-10-28 15:17:17,853 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:17:17,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/invert_string-3.c [2020-10-28 15:17:17,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c10f27d2/330b034d33aa4cf9933bd25d7cae3366/FLAG5d823ae3f [2020-10-28 15:17:18,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c10f27d2/330b034d33aa4cf9933bd25d7cae3366 [2020-10-28 15:17:18,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:17:18,224 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:17:18,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:17:18,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:17:18,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:17:18,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13136ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18, skipping insertion in model container [2020-10-28 15:17:18,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:17:18,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:17:18,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:17:18,449 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:17:18,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:17:18,490 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:17:18,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18 WrapperNode [2020-10-28 15:17:18,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:17:18,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:17:18,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:17:18,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:17:18,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (1/1) ... [2020-10-28 15:17:18,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:17:18,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:17:18,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:17:18,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:17:18,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (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 [2020-10-28 15:17:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:17:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:17:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:17:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 15:17:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:17:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:17:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:17:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:17:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:17:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 15:17:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 15:17:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:17:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:17:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:17:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:17:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:17:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:17:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:17:19,104 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:17:19,105 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 15:17:19,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:17:19 BoogieIcfgContainer [2020-10-28 15:17:19,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:17:19,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:17:19,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:17:19,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:17:19,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:17:18" (1/3) ... [2020-10-28 15:17:19,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558e963d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:17:19, skipping insertion in model container [2020-10-28 15:17:19,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:18" (2/3) ... [2020-10-28 15:17:19,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558e963d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:17:19, skipping insertion in model container [2020-10-28 15:17:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:17:19" (3/3) ... [2020-10-28 15:17:19,142 INFO L111 eAbstractionObserver]: Analyzing ICFG invert_string-3.c [2020-10-28 15:17:19,156 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:17:19,162 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:17:19,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:17:19,225 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:17:19,226 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:17:19,226 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:17:19,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:17:19,226 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:17:19,226 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:17:19,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:17:19,227 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:17:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-28 15:17:19,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-28 15:17:19,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:19,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:19,264 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:19,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1224473765, now seen corresponding path program 1 times [2020-10-28 15:17:19,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:19,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203090120] [2020-10-28 15:17:19,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:19,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:19,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:20,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:20,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 15:17:20,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:17:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-28 15:17:20,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:20,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:17:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:17:20,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:17:20,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:20,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:20,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:20,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:20,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:20,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 15:17:20,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:20,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:20,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:17:20,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203090120] [2020-10-28 15:17:20,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:17:20,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:17:20,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992444463] [2020-10-28 15:17:20,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:17:20,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:20,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:17:20,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:17:20,572 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-10-28 15:17:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:20,782 INFO L93 Difference]: Finished difference Result 52 states and 66 transitions. [2020-10-28 15:17:20,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 15:17:20,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-28 15:17:20,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:20,793 INFO L225 Difference]: With dead ends: 52 [2020-10-28 15:17:20,794 INFO L226 Difference]: Without dead ends: 24 [2020-10-28 15:17:20,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:17:20,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-28 15:17:20,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-28 15:17:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-28 15:17:20,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-28 15:17:20,856 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2020-10-28 15:17:20,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:20,857 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-28 15:17:20,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:17:20,858 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-28 15:17:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 15:17:20,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:20,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:20,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:17:20,862 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:20,863 INFO L82 PathProgramCache]: Analyzing trace with hash -207941625, now seen corresponding path program 1 times [2020-10-28 15:17:20,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:20,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247399717] [2020-10-28 15:17:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:21,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:21,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:21,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 15:17:21,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 848 [2020-10-28 15:17:21,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:21,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:17:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:17:21,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:21,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:21,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:21,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:21,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:17:21,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:21,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 15:17:21,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247399717] [2020-10-28 15:17:21,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:17:21,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 15:17:21,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352512424] [2020-10-28 15:17:21,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 15:17:21,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:21,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 15:17:21,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:17:21,871 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2020-10-28 15:17:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:21,981 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-10-28 15:17:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 15:17:21,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-28 15:17:21,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:21,983 INFO L225 Difference]: With dead ends: 42 [2020-10-28 15:17:21,983 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 15:17:21,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:17:21,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 15:17:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-10-28 15:17:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-28 15:17:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-10-28 15:17:21,993 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 18 [2020-10-28 15:17:21,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:21,994 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-10-28 15:17:21,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 15:17:21,994 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-10-28 15:17:21,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 15:17:21,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:21,995 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] [2020-10-28 15:17:21,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:17:21,995 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:21,996 INFO L82 PathProgramCache]: Analyzing trace with hash 812186281, now seen corresponding path program 1 times [2020-10-28 15:17:21,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:21,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67131322] [2020-10-28 15:17:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:22,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:22,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:22,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:22,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 15:17:22,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-28 15:17:22,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:22,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:17:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 15:17:22,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:22,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:22,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:22,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:22,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:22,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:17:22,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:22,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:22,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 15:17:22,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67131322] [2020-10-28 15:17:22,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:22,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 15:17:22,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279695286] [2020-10-28 15:17:22,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:17:22,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:22,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:17:22,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:17:22,816 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2020-10-28 15:17:22,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:22,935 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-10-28 15:17:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:17:22,936 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-28 15:17:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:22,937 INFO L225 Difference]: With dead ends: 40 [2020-10-28 15:17:22,937 INFO L226 Difference]: Without dead ends: 28 [2020-10-28 15:17:22,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:17:22,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-28 15:17:22,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-10-28 15:17:22,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-28 15:17:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-28 15:17:22,945 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 20 [2020-10-28 15:17:22,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:22,946 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-28 15:17:22,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:17:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-28 15:17:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 15:17:22,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:22,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:22,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:17:22,947 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:22,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:22,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1279222517, now seen corresponding path program 2 times [2020-10-28 15:17:22,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:22,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092532880] [2020-10-28 15:17:22,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:22,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:23,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:23,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 15:17:23,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:23,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-10-28 15:17:23,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:23,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:23,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:17:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:17:23,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:23,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:23,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:23,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:23,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:23,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:17:23,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:23,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 15:17:23,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092532880] [2020-10-28 15:17:23,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:23,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 15:17:23,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530790493] [2020-10-28 15:17:23,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:17:23,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:23,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:17:23,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:17:23,954 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 5 states. [2020-10-28 15:17:24,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:24,051 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-10-28 15:17:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 15:17:24,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-28 15:17:24,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:24,052 INFO L225 Difference]: With dead ends: 48 [2020-10-28 15:17:24,053 INFO L226 Difference]: Without dead ends: 30 [2020-10-28 15:17:24,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:17:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-28 15:17:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-10-28 15:17:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-28 15:17:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-10-28 15:17:24,061 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2020-10-28 15:17:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:24,062 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-10-28 15:17:24,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:17:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-10-28 15:17:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 15:17:24,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:24,063 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] [2020-10-28 15:17:24,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:17:24,063 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:24,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1401657683, now seen corresponding path program 3 times [2020-10-28 15:17:24,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:24,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072750604] [2020-10-28 15:17:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:24,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:24,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:25,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:25,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 15:17:25,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:25,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1292 [2020-10-28 15:17:25,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:25,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:17:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:17:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:25,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:25,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:25,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:25,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:25,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:17:25,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:25,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:25,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 15:17:25,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072750604] [2020-10-28 15:17:25,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:25,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 15:17:25,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426635452] [2020-10-28 15:17:25,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 15:17:25,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:25,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 15:17:25,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:17:25,530 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 7 states. [2020-10-28 15:17:25,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:25,699 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2020-10-28 15:17:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:17:25,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-28 15:17:25,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:25,700 INFO L225 Difference]: With dead ends: 44 [2020-10-28 15:17:25,701 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 15:17:25,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:17:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 15:17:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-28 15:17:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-28 15:17:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-28 15:17:25,715 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 24 [2020-10-28 15:17:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:25,715 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-28 15:17:25,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 15:17:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-28 15:17:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 15:17:25,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:25,717 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:25,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 15:17:25,717 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:25,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1520506895, now seen corresponding path program 4 times [2020-10-28 15:17:25,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:25,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382774192] [2020-10-28 15:17:25,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:25,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:25,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:26,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:27,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:27,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-28 15:17:27,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:27,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1712 [2020-10-28 15:17:27,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:27,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:27,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:17:27,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:27,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 15:17:27,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:27,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:27,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:27,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:27,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:17:27,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:27,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 15:17:27,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382774192] [2020-10-28 15:17:27,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:27,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 15:17:27,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463452620] [2020-10-28 15:17:27,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:17:27,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:27,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:17:27,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:17:27,608 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 8 states. [2020-10-28 15:17:27,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:27,803 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2020-10-28 15:17:27,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:17:27,804 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-10-28 15:17:27,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:27,806 INFO L225 Difference]: With dead ends: 46 [2020-10-28 15:17:27,806 INFO L226 Difference]: Without dead ends: 34 [2020-10-28 15:17:27,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:17:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-28 15:17:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-10-28 15:17:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-28 15:17:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2020-10-28 15:17:27,820 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2020-10-28 15:17:27,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:27,821 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2020-10-28 15:17:27,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:17:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-10-28 15:17:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 15:17:27,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:27,822 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:27,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 15:17:27,823 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:27,823 INFO L82 PathProgramCache]: Analyzing trace with hash 812054769, now seen corresponding path program 5 times [2020-10-28 15:17:27,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:27,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093272787] [2020-10-28 15:17:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:27,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:28,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:30,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:30,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 15:17:30,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:30,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2408 [2020-10-28 15:17:30,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:30,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:17:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:30,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:17:30,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:30,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:30,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:30,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:30,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:17:30,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:30,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-28 15:17:30,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093272787] [2020-10-28 15:17:30,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:30,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 15:17:30,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356086996] [2020-10-28 15:17:30,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:17:30,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:30,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:17:30,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:17:30,414 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 6 states. [2020-10-28 15:17:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:30,525 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2020-10-28 15:17:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:17:30,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-28 15:17:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:30,527 INFO L225 Difference]: With dead ends: 58 [2020-10-28 15:17:30,527 INFO L226 Difference]: Without dead ends: 36 [2020-10-28 15:17:30,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:17:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-28 15:17:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-10-28 15:17:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-28 15:17:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-10-28 15:17:30,535 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 28 [2020-10-28 15:17:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:30,535 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-10-28 15:17:30,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:17:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-10-28 15:17:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 15:17:30,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:30,537 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:30,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 15:17:30,537 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:30,538 INFO L82 PathProgramCache]: Analyzing trace with hash -720273133, now seen corresponding path program 6 times [2020-10-28 15:17:30,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:30,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181852751] [2020-10-28 15:17:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:30,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:33,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:17:33,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3096 [2020-10-28 15:17:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:33,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:17:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 15:17:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:33,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:33,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:33,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:33,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:33,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:33,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:17:33,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:33,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:33,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:33,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:33,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:33,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 15:17:33,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181852751] [2020-10-28 15:17:33,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:33,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 15:17:33,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619396881] [2020-10-28 15:17:33,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:17:33,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:33,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:17:33,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:17:33,819 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 9 states. [2020-10-28 15:17:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:34,103 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2020-10-28 15:17:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:17:34,103 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-10-28 15:17:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:34,106 INFO L225 Difference]: With dead ends: 68 [2020-10-28 15:17:34,106 INFO L226 Difference]: Without dead ends: 56 [2020-10-28 15:17:34,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:17:34,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-28 15:17:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2020-10-28 15:17:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-28 15:17:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-10-28 15:17:34,118 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 30 [2020-10-28 15:17:34,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:34,118 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-10-28 15:17:34,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:17:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-10-28 15:17:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 15:17:34,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:34,119 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:34,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 15:17:34,120 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:34,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:34,120 INFO L82 PathProgramCache]: Analyzing trace with hash -798936843, now seen corresponding path program 7 times [2020-10-28 15:17:34,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:34,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365162037] [2020-10-28 15:17:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:34,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:34,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:39,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 15:17:39,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:17:39,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 15:17:39,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:39,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:17:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 15:17:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:39,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:39,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:39,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:39,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:17:39,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:39,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:39,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-28 15:17:39,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365162037] [2020-10-28 15:17:39,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:39,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 15:17:39,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705412235] [2020-10-28 15:17:39,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 15:17:39,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:39,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 15:17:39,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:17:39,321 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 7 states. [2020-10-28 15:17:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:39,464 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-10-28 15:17:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:17:39,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-28 15:17:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:39,465 INFO L225 Difference]: With dead ends: 64 [2020-10-28 15:17:39,466 INFO L226 Difference]: Without dead ends: 40 [2020-10-28 15:17:39,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:17:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-28 15:17:39,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-28 15:17:39,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-28 15:17:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-10-28 15:17:39,473 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 32 [2020-10-28 15:17:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:39,474 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-10-28 15:17:39,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 15:17:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-10-28 15:17:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-28 15:17:39,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:39,475 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:39,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 15:17:39,475 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:39,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1905862633, now seen corresponding path program 8 times [2020-10-28 15:17:39,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:39,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147008660] [2020-10-28 15:17:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:39,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:44,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:44,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 15:17:44,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:17:44,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 15:17:44,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:44,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:17:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:17:44,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:44,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:44,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:44,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:44,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:44,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:17:44,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:44,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:44,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-28 15:17:44,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147008660] [2020-10-28 15:17:44,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:44,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 15:17:44,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845018994] [2020-10-28 15:17:44,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:17:44,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:44,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:17:44,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:17:44,676 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 8 states. [2020-10-28 15:17:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:44,833 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2020-10-28 15:17:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:17:44,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-28 15:17:44,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:44,834 INFO L225 Difference]: With dead ends: 66 [2020-10-28 15:17:44,834 INFO L226 Difference]: Without dead ends: 42 [2020-10-28 15:17:44,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:17:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-28 15:17:44,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-28 15:17:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-28 15:17:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-10-28 15:17:44,844 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 34 [2020-10-28 15:17:44,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:44,845 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-10-28 15:17:44,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:17:44,845 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-10-28 15:17:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-28 15:17:44,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:44,849 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:44,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 15:17:44,850 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:44,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:44,850 INFO L82 PathProgramCache]: Analyzing trace with hash -509657415, now seen corresponding path program 9 times [2020-10-28 15:17:44,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:44,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985862095] [2020-10-28 15:17:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:44,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:45,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:45,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:46,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 15:17:46,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:46,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1926 [2020-10-28 15:17:46,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:46,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 15:17:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 15:17:46,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:48,019 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2020-10-28 15:17:48,293 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2020-10-28 15:17:48,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:48,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:48,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:48,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:48,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:17:48,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:48,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:48,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:48,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:48,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-28 15:17:48,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985862095] [2020-10-28 15:17:48,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:48,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-28 15:17:48,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790172911] [2020-10-28 15:17:48,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 15:17:48,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:48,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 15:17:48,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-10-28 15:17:48,696 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 18 states. [2020-10-28 15:17:49,846 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-10-28 15:17:50,014 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2020-10-28 15:17:50,242 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 37 [2020-10-28 15:17:50,447 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2020-10-28 15:17:51,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:51,683 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2020-10-28 15:17:51,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-28 15:17:51,684 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 36 [2020-10-28 15:17:51,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:51,685 INFO L225 Difference]: With dead ends: 64 [2020-10-28 15:17:51,685 INFO L226 Difference]: Without dead ends: 61 [2020-10-28 15:17:51,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=360, Invalid=1280, Unknown=0, NotChecked=0, Total=1640 [2020-10-28 15:17:51,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-28 15:17:51,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2020-10-28 15:17:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 15:17:51,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-28 15:17:51,696 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 36 [2020-10-28 15:17:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:51,696 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-28 15:17:51,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 15:17:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-28 15:17:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-28 15:17:51,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:51,699 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:51,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 15:17:51,700 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:51,700 INFO L82 PathProgramCache]: Analyzing trace with hash -888799201, now seen corresponding path program 1 times [2020-10-28 15:17:51,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:51,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969673006] [2020-10-28 15:17:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:51,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:51,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:53,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:55,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-28 15:17:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3616 [2020-10-28 15:17:55,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:55,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 15:17:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 15:17:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:55,731 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2020-10-28 15:17:55,881 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2020-10-28 15:17:56,020 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-28 15:17:56,178 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-28 15:17:56,347 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 38 [2020-10-28 15:17:56,499 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2020-10-28 15:17:56,825 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 39 [2020-10-28 15:17:57,000 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2020-10-28 15:17:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:57,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:57,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:57,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:57,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:17:57,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:57,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:57,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:57,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:57,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:57,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:17:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:57,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:57,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:57,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:17:57,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:57,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:17:57,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:57,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:17:57,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:57,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:17:57,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-28 15:17:57,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969673006] [2020-10-28 15:17:57,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:57,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-28 15:17:57,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774771729] [2020-10-28 15:17:57,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 15:17:57,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:57,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 15:17:57,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-10-28 15:17:57,378 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 19 states. [2020-10-28 15:17:59,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:59,593 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2020-10-28 15:17:59,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 15:17:59,595 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 44 [2020-10-28 15:17:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:59,598 INFO L225 Difference]: With dead ends: 68 [2020-10-28 15:17:59,598 INFO L226 Difference]: Without dead ends: 65 [2020-10-28 15:17:59,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=117, Invalid=1073, Unknown=0, NotChecked=0, Total=1190 [2020-10-28 15:17:59,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-28 15:17:59,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2020-10-28 15:17:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-28 15:17:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-10-28 15:17:59,613 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 44 [2020-10-28 15:17:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:59,614 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-10-28 15:17:59,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 15:17:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-10-28 15:17:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-28 15:17:59,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:59,616 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:59,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 15:17:59,616 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1101964159, now seen corresponding path program 2 times [2020-10-28 15:17:59,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:59,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158057873] [2020-10-28 15:17:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:59,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:59,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:01,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:01,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 15:18:01,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:18:01,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2168 [2020-10-28 15:18:01,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:01,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 15:18:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:18:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 15:18:01,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:01,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:18:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:01,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:01,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:01,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:18:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:18:01,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:01,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:18:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:18:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:01,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 15:18:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:01,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:01,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:01,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:01,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:01,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:18:01,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:01,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:18:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 15:18:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:18:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-28 15:18:01,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158057873] [2020-10-28 15:18:01,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:18:01,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 15:18:01,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656093891] [2020-10-28 15:18:01,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 15:18:01,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:18:01,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 15:18:01,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:18:01,966 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 10 states. [2020-10-28 15:18:02,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:18:02,339 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2020-10-28 15:18:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:18:02,340 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-10-28 15:18:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:18:02,341 INFO L225 Difference]: With dead ends: 90 [2020-10-28 15:18:02,341 INFO L226 Difference]: Without dead ends: 70 [2020-10-28 15:18:02,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-10-28 15:18:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-28 15:18:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 55. [2020-10-28 15:18:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-28 15:18:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-10-28 15:18:02,372 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 46 [2020-10-28 15:18:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:18:02,373 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-10-28 15:18:02,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 15:18:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-10-28 15:18:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 15:18:02,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:18:02,374 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:18:02,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 15:18:02,374 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:18:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:18:02,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1721762939, now seen corresponding path program 3 times [2020-10-28 15:18:02,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:18:02,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187167848] [2020-10-28 15:18:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:18:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:02,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:02,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:03,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:05,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:05,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 15:18:05,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:18:05,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3161 [2020-10-28 15:18:05,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:05,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:05,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 15:18:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:18:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 15:18:05,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:05,914 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-10-28 15:18:06,039 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-10-28 15:18:06,194 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-10-28 15:18:06,364 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-10-28 15:18:06,516 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-28 15:18:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:18:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:07,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:18:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:07,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:18:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:07,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:07,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:07,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:07,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:07,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:07,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:07,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:07,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 15:18:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:07,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:07,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:07,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:07,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:07,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:07,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:07,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:07,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:07,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:07,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:07,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-28 15:18:07,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187167848] [2020-10-28 15:18:07,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:18:07,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-28 15:18:07,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959943827] [2020-10-28 15:18:07,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-28 15:18:07,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:18:07,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-28 15:18:07,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-28 15:18:07,488 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 22 states. [2020-10-28 15:18:10,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:18:10,681 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-28 15:18:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-28 15:18:10,682 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 52 [2020-10-28 15:18:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:18:10,684 INFO L225 Difference]: With dead ends: 67 [2020-10-28 15:18:10,684 INFO L226 Difference]: Without dead ends: 64 [2020-10-28 15:18:10,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-10-28 15:18:10,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-28 15:18:10,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2020-10-28 15:18:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-28 15:18:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-28 15:18:10,704 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 52 [2020-10-28 15:18:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:18:10,705 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-28 15:18:10,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-28 15:18:10,705 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-28 15:18:10,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-28 15:18:10,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:18:10,707 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:18:10,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 15:18:10,707 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:18:10,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:18:10,708 INFO L82 PathProgramCache]: Analyzing trace with hash 718483691, now seen corresponding path program 4 times [2020-10-28 15:18:10,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:18:10,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524464048] [2020-10-28 15:18:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:18:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:10,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:10,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:12,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:14,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4195 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 15:18:14,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:15,232 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-28 15:18:15,362 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-10-28 15:18:15,509 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-10-28 15:18:15,676 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-28 15:18:15,867 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-10-28 15:18:16,081 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2020-10-28 15:18:16,290 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-28 15:18:16,472 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-10-28 15:18:16,636 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-10-28 15:18:16,833 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-28 15:18:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:18:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:17,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:17,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:17,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:18:17,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:18:17,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:17,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:18:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:18:17,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:18:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:17,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:17,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:17,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:17,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:17,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:17,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:17,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:17,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:17,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 15:18:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:17,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:17,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:17,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:17,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:17,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:17,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:17,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:17,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 15:18:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:17,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:17,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:17,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:17,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:17,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:17,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:17,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:17,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:17,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:17,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:17,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-28 15:18:17,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524464048] [2020-10-28 15:18:17,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:18:17,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-28 15:18:17,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126410530] [2020-10-28 15:18:17,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 15:18:17,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:18:17,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 15:18:17,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-28 15:18:17,725 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 25 states. [2020-10-28 15:18:18,084 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2020-10-28 15:18:18,346 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-10-28 15:18:18,888 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-10-28 15:18:19,233 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-10-28 15:18:19,609 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2020-10-28 15:18:20,037 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-10-28 15:18:20,410 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 43 [2020-10-28 15:18:20,760 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-10-28 15:18:21,049 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-10-28 15:18:21,300 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 46 [2020-10-28 15:18:21,504 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-28 15:18:22,227 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2020-10-28 15:18:22,613 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2020-10-28 15:18:23,126 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 34 [2020-10-28 15:18:23,436 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2020-10-28 15:18:23,799 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2020-10-28 15:18:24,122 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2020-10-28 15:18:24,406 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-10-28 15:18:24,683 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-10-28 15:18:24,986 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-10-28 15:18:25,585 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-10-28 15:18:25,902 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2020-10-28 15:18:26,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:18:26,200 INFO L93 Difference]: Finished difference Result 79 states and 81 transitions. [2020-10-28 15:18:26,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-28 15:18:26,208 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 60 [2020-10-28 15:18:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:18:26,209 INFO L225 Difference]: With dead ends: 79 [2020-10-28 15:18:26,209 INFO L226 Difference]: Without dead ends: 76 [2020-10-28 15:18:26,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=404, Invalid=2352, Unknown=0, NotChecked=0, Total=2756 [2020-10-28 15:18:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-28 15:18:26,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2020-10-28 15:18:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-28 15:18:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-28 15:18:26,234 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 60 [2020-10-28 15:18:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:18:26,236 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-28 15:18:26,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 15:18:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-28 15:18:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 15:18:26,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:18:26,237 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:18:26,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 15:18:26,237 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:18:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:18:26,238 INFO L82 PathProgramCache]: Analyzing trace with hash -679108527, now seen corresponding path program 5 times [2020-10-28 15:18:26,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:18:26,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133978973] [2020-10-28 15:18:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:18:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:26,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:26,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:28,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:28,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1908 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 15:18:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:28,489 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-28 15:18:28,620 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-28 15:18:29,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:18:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:29,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:29,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:29,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:18:29,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:29,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:18:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:18:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:29,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:18:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:29,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:29,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:29,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:29,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:29,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:29,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:29,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 15:18:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:29,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:29,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:29,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:29,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:29,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:29,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:29,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:29,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:29,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 15:18:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:29,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:29,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:29,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:29,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:29,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:29,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 15:18:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:29,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:29,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:29,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 14 proven. 51 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-28 15:18:29,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133978973] [2020-10-28 15:18:29,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:18:29,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-28 15:18:29,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804981222] [2020-10-28 15:18:29,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-28 15:18:29,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:18:29,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-28 15:18:29,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2020-10-28 15:18:29,637 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 22 states. [2020-10-28 15:18:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:18:31,902 INFO L93 Difference]: Finished difference Result 83 states and 84 transitions. [2020-10-28 15:18:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 15:18:31,903 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 68 [2020-10-28 15:18:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:18:31,904 INFO L225 Difference]: With dead ends: 83 [2020-10-28 15:18:31,905 INFO L226 Difference]: Without dead ends: 80 [2020-10-28 15:18:31,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=186, Invalid=1374, Unknown=0, NotChecked=0, Total=1560 [2020-10-28 15:18:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-28 15:18:31,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-10-28 15:18:31,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-28 15:18:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2020-10-28 15:18:31,932 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 68 [2020-10-28 15:18:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:18:31,933 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2020-10-28 15:18:31,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-28 15:18:31,933 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2020-10-28 15:18:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 15:18:31,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:18:31,934 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:18:31,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 15:18:31,934 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:18:31,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:18:31,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1906133431, now seen corresponding path program 6 times [2020-10-28 15:18:31,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:18:31,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353023504] [2020-10-28 15:18:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:18:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:31,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:32,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:32,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:32,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:36,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:36,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:36,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:36,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:36,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 15:18:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:18:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:37,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:37,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:37,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:18:37,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:37,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:37,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:18:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:18:37,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:18:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:37,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:37,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:37,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 15:18:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:37,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:37,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:37,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:37,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:37,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:37,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:37,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:37,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 15:18:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:37,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:37,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:37,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:37,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:37,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:37,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:37,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:37,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 15:18:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:37,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:37,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:37,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:37,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:37,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:18:37,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:37,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:37,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 15:18:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:18:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:18:37,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:18:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:18:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-28 15:18:37,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353023504] [2020-10-28 15:18:37,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:18:37,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 15:18:37,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006025238] [2020-10-28 15:18:37,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 15:18:37,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:18:37,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 15:18:37,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:18:37,425 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 10 states. [2020-10-28 15:18:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:18:37,920 INFO L93 Difference]: Finished difference Result 135 states and 137 transitions. [2020-10-28 15:18:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:18:37,921 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-28 15:18:37,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:18:37,921 INFO L225 Difference]: With dead ends: 135 [2020-10-28 15:18:37,921 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 15:18:37,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:18:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 15:18:37,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 15:18:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 15:18:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 15:18:37,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-28 15:18:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:18:37,925 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 15:18:37,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 15:18:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 15:18:37,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 15:18:37,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 15:18:37,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 15:18:38,162 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 179 [2020-10-28 15:18:38,422 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 180 [2020-10-28 15:18:39,691 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 178 DAG size of output: 104 [2020-10-28 15:18:41,402 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 207 DAG size of output: 135 [2020-10-28 15:18:42,522 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 179 DAG size of output: 108 [2020-10-28 15:18:42,990 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 31 [2020-10-28 15:18:42,994 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 15:18:42,994 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 15:18:42,994 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 15:18:42,994 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 15:18:42,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:18:42,994 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 15:18:42,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:18:42,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:18:42,995 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 15:18:42,995 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 15:18:42,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:18:42,996 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (let ((.cse2 (+ main_~j~0 |main_~#str2~0.offset|)) (.cse18 (+ |main_~#str1~0.offset| main_~i~0)) (.cse17 (+ |main_~#str1~0.offset| 2)) (.cse15 (+ main_~max~0 |main_~#str2~0.offset|)) (.cse5 (select |#memory_int| |main_~#str1~0.base|)) (.cse4 (select |#memory_int| |main_~#str2~0.base|)) (.cse20 (* (div (+ main_~max~0 4294967295) 4294967296) (- 4294967296)))) (let ((.cse6 (<= 0 |main_~#str1~0.offset|)) (.cse9 (<= 0 main_~i~0)) (.cse10 (<= |main_~#str2~0.offset| 0)) (.cse3 (= (select .cse5 (+ .cse20 4294967296)) (select .cse4 (+ main_~max~0 .cse20 4294967295)))) (.cse0 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse14 (= (select .cse4 (+ main_~max~0 |main_~#str2~0.offset| (- 5))) (select .cse5 (+ |main_~#str1~0.offset| .cse20 4294967300)))) (.cse19 (<= .cse15 5)) (.cse7 (<= 5 main_~max~0)) (.cse8 (= (select .cse5 .cse17) (select .cse4 (+ main_~max~0 |main_~#str2~0.offset| (- 3))))) (.cse16 (= (select .cse4 .cse2) (select .cse5 .cse18))) (.cse11 (= |main_#t~mem14| |main_#t~mem13|)) (.cse12 (= (select .cse5 (+ |main_~#str1~0.offset| 3)) (select .cse4 1))) (.cse13 (<= |main_~#str1~0.offset| |main_~#str2~0.offset|))) (or (let ((.cse1 (+ |main_~#str1~0.offset| 1))) (and .cse0 (<= .cse1 .cse2) (<= main_~i~0 3) .cse3 (= (select .cse4 (+ main_~j~0 |main_~#str2~0.offset| (- 1))) (select .cse5 (+ |main_~#str1~0.offset| main_~i~0 1))) .cse6 (<= .cse2 .cse1) .cse7 .cse8 .cse9 .cse10 .cse11 (<= main_~max~0 (+ main_~i~0 2)) .cse12 .cse13)) (and .cse0 .cse14 (<= 5 .cse15) .cse3 (<= main_~i~0 4) (<= |main_~#str2~0.offset| |main_~#str1~0.offset|) .cse8 .cse9 .cse16 .cse10 .cse11 .cse12 (<= main_~max~0 (+ main_~i~0 1)) .cse13) (and (<= .cse2 .cse17) .cse0 (<= .cse17 .cse2) .cse14 (<= main_~max~0 (+ main_~i~0 3)) .cse3 .cse6 .cse7 .cse9 (<= main_~i~0 2) .cse16 .cse10 .cse11 .cse12 .cse13) (and .cse0 .cse14 (<= main_~i~0 1) .cse3 (= .cse18 1) .cse19 (<= .cse2 3) .cse7 .cse8 (<= 3 .cse2) .cse16 .cse11 .cse12 .cse13) (and .cse0 (= (select .cse5 1) (select .cse4 (+ main_~max~0 |main_~#str2~0.offset| .cse20 4294967294))) (<= 0 .cse18) .cse14 (<= 4 .cse2) .cse19 (= main_~i~0 0) .cse7 .cse8 (<= .cse2 4) .cse16 .cse11 .cse12 .cse13)))) [2020-10-28 15:18:42,996 INFO L274 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-10-28 15:18:42,996 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 13 36) no Hoare annotation was computed. [2020-10-28 15:18:42,996 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 13 36) no Hoare annotation was computed. [2020-10-28 15:18:42,996 INFO L274 CegarLoopResult]: For program point L32-2(lines 32 35) no Hoare annotation was computed. [2020-10-28 15:18:42,996 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 13 36) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-28 15:18:42,997 INFO L270 CegarLoopResult]: At program point L32-3(lines 32 35) the Hoare annotation is: (let ((.cse11 (+ main_~j~0 |main_~#str2~0.offset|)) (.cse18 (+ |main_~#str1~0.offset| main_~i~0)) (.cse12 (+ |main_~#str1~0.offset| 2)) (.cse17 (select |#memory_int| |main_~#str1~0.base|)) (.cse16 (select |#memory_int| |main_~#str2~0.base|)) (.cse20 (* (div (+ main_~max~0 4294967295) 4294967296) (- 4294967296))) (.cse21 (+ main_~max~0 |main_~#str2~0.offset|))) (let ((.cse13 (<= 0 |main_~#str1~0.offset|)) (.cse2 (<= 5 .cse21)) (.cse3 (= (select .cse17 (+ .cse20 4294967296)) (select .cse16 (+ main_~max~0 .cse20 4294967295)))) (.cse4 (<= |main_~#str2~0.offset| |main_~#str1~0.offset|)) (.cse6 (<= 0 main_~i~0)) (.cse8 (<= |main_~#str2~0.offset| 0)) (.cse0 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse1 (= (select .cse16 (+ main_~max~0 |main_~#str2~0.offset| (- 5))) (select .cse17 (+ |main_~#str1~0.offset| .cse20 4294967300)))) (.cse19 (<= .cse21 5)) (.cse14 (<= 5 main_~max~0)) (.cse5 (= (select .cse17 .cse12) (select .cse16 (+ main_~max~0 |main_~#str2~0.offset| (- 3))))) (.cse7 (= (select .cse16 .cse11) (select .cse17 .cse18))) (.cse9 (= (select .cse17 (+ |main_~#str1~0.offset| 3)) (select .cse16 1))) (.cse10 (<= |main_~#str1~0.offset| |main_~#str2~0.offset|))) (or (and .cse0 .cse1 .cse2 .cse3 (<= main_~i~0 4) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= main_~max~0 (+ main_~i~0 1)) .cse10) (and (<= .cse11 .cse12) .cse0 (<= .cse12 .cse11) .cse1 (<= main_~max~0 (+ main_~i~0 3)) .cse3 .cse13 .cse14 .cse6 (<= main_~i~0 2) .cse7 .cse8 .cse9 .cse10) (let ((.cse15 (+ |main_~#str1~0.offset| 1))) (and .cse0 (<= .cse15 .cse11) (<= main_~i~0 3) .cse3 (= (select .cse16 (+ main_~j~0 |main_~#str2~0.offset| (- 1))) (select .cse17 (+ |main_~#str1~0.offset| main_~i~0 1))) .cse13 (<= .cse11 .cse15) .cse14 .cse5 .cse6 .cse8 (<= main_~max~0 (+ main_~i~0 2)) .cse9 .cse10)) (and .cse0 .cse1 (<= main_~i~0 1) .cse3 (= .cse18 1) .cse19 (<= .cse11 3) .cse14 .cse5 (<= 3 .cse11) .cse7 .cse9 .cse10) (and (<= main_~max~0 main_~i~0) .cse0 .cse1 (<= main_~max~0 5) .cse2 .cse3 (< (div main_~i~0 4294967296) (+ (div main_~max~0 4294967296) 1)) .cse4 .cse5 .cse6 .cse8 .cse9 .cse10) (and .cse0 (= (select .cse17 1) (select .cse16 (+ main_~max~0 |main_~#str2~0.offset| .cse20 4294967294))) (<= 0 .cse18) .cse1 (<= 4 .cse11) .cse19 (= main_~i~0 0) .cse14 .cse5 (<= .cse11 4) .cse7 .cse9 .cse10)))) [2020-10-28 15:18:42,997 INFO L274 CegarLoopResult]: For program point L32-4(lines 32 35) no Hoare annotation was computed. [2020-10-28 15:18:42,997 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 29) no Hoare annotation was computed. [2020-10-28 15:18:42,998 INFO L270 CegarLoopResult]: At program point L26-3(lines 26 29) the Hoare annotation is: (let ((.cse18 (+ main_~max~0 4294967295))) (let ((.cse21 (select |#memory_int| |main_~#str2~0.base|)) (.cse12 (+ main_~j~0 |main_~#str2~0.offset|)) (.cse17 (select |#memory_int| |main_~#str1~0.base|)) (.cse15 (+ |main_~#str1~0.offset| main_~i~0)) (.cse10 (div .cse18 4294967296))) (let ((.cse16 (+ |main_~#str1~0.offset| 3)) (.cse19 (* 4294967296 .cse10)) (.cse20 (* .cse10 (- 4294967296))) (.cse5 (store .cse21 .cse12 (select .cse17 .cse15))) (.cse23 (+ main_~max~0 |main_~#str2~0.offset| (- 3)))) (let ((.cse1 (select .cse5 .cse23)) (.cse6 (= (select .cse17 1) (select .cse21 (+ main_~max~0 |main_~#str2~0.offset| .cse20 4294967294)))) (.cse2 (<= 0 |main_~#str1~0.offset|)) (.cse8 (<= (+ main_~i~0 main_~j~0 |main_~#str2~0.offset| .cse19) .cse18)) (.cse4 (select .cse17 .cse16)) (.cse11 (<= |main_~#str1~0.offset| |main_~#str2~0.offset|)) (.cse0 (select (store |#memory_int| |main_~#str2~0.base| .cse5) |main_~#str1~0.base|)) (.cse3 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse13 (<= (+ main_~max~0 |main_~#str2~0.offset|) 5)) (.cse7 (<= 5 main_~max~0)) (.cse9 (= (select .cse21 (+ main_~max~0 |main_~#str2~0.offset| (- 5))) (select .cse17 (+ |main_~#str1~0.offset| .cse20 4294967300)))) (.cse14 (+ |main_~#str1~0.offset| main_~i~0 .cse19))) (or (and (= (select .cse0 (+ |main_~#str1~0.offset| main_~i~0 2)) .cse1) .cse2 .cse3 (= .cse4 (select .cse5 1)) .cse6 .cse7 .cse8 (<= main_~max~0 (+ main_~j~0 2)) .cse9 (not (= (+ main_~max~0 4294967294) (+ main_~j~0 (* .cse10 4294967296)))) .cse11 (<= main_~max~0 (+ main_~i~0 5))) (and (<= (+ main_~j~0 5) main_~max~0) .cse3 (<= |main_~#str1~0.offset| .cse12) .cse13 .cse7 .cse8 (<= main_~max~0 (+ main_~j~0 |main_~#str2~0.offset| 5)) (<= (+ main_~j~0 |main_~#str2~0.offset| 4294967300) .cse14)) (and (= .cse15 1) .cse3 .cse13 .cse7 (= (select .cse5 .cse15) (select .cse0 .cse12)) .cse9 (<= .cse12 .cse16) .cse11 (<= main_~i~0 1) (<= .cse16 .cse12) (= .cse1 (select .cse17 (+ |main_~#str1~0.offset| main_~i~0 1)))) (let ((.cse22 (+ main_~i~0 1))) (and .cse3 (<= .cse18 (+ main_~j~0 |main_~#str2~0.offset| .cse19)) .cse6 .cse9 (= (select .cse17 (+ .cse20 4294967296)) (select .cse21 (+ main_~max~0 .cse20 4294967295))) .cse2 .cse13 .cse7 .cse8 (<= 0 .cse22) (<= .cse22 0) (= (select .cse17 (+ |main_~#str1~0.offset| main_~i~0 3)) (select .cse21 .cse23)) (= .cse4 (select .cse21 1)) .cse11)) (and (= (select .cse5 (+ |main_~#str1~0.offset| 1)) (select .cse0 (+ main_~i~0 main_~j~0 |main_~#str2~0.offset| (- 1)))) .cse3 .cse13 (<= 2 .cse12) .cse7 (= .cse15 .cse12) (<= (+ main_~j~0 3) main_~max~0) (<= main_~i~0 2) .cse9 (<= main_~max~0 (+ main_~i~0 3))) (and .cse3 .cse13 .cse7 (<= (+ main_~j~0 4) main_~max~0) (<= main_~max~0 (+ main_~j~0 |main_~#str2~0.offset| 4)) .cse9 (<= .cse14 (+ main_~max~0 |main_~#str2~0.offset| 4294967294)) (<= main_~max~0 (+ main_~i~0 2)) (<= (+ |main_~#str2~0.offset| 5) (+ |main_~#str1~0.offset| main_~max~0)))))))) [2020-10-28 15:18:42,998 INFO L274 CegarLoopResult]: For program point L26-4(lines 26 29) no Hoare annotation was computed. [2020-10-28 15:18:42,998 INFO L274 CegarLoopResult]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2020-10-28 15:18:42,998 INFO L270 CegarLoopResult]: At program point L18-3(lines 18 20) the Hoare annotation is: (let ((.cse0 (<= 0 |main_~#str1~0.offset|)) (.cse1 (not (= |main_~#str1~0.base| |main_~#str2~0.base|))) (.cse2 (<= (+ main_~max~0 |main_~#str2~0.offset|) 5)) (.cse3 (<= |main_~#str1~0.offset| |main_~#str2~0.offset|)) (.cse4 (<= (+ |main_~#str2~0.offset| 5) (+ |main_~#str1~0.offset| main_~max~0)))) (or (and .cse0 .cse1 .cse2 (<= 3 main_~i~0) .cse3 .cse4 (< (div main_~i~0 4294967296) (+ (div main_~max~0 4294967296) 1))) (and .cse0 .cse1 .cse2 (<= 0 main_~i~0) (<= main_~i~0 2) .cse3 .cse4))) [2020-10-28 15:18:42,998 INFO L274 CegarLoopResult]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2020-10-28 15:18:42,998 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-28 15:18:42,998 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-28 15:18:42,998 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-28 15:18:42,999 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-28 15:18:42,999 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-28 15:18:42,999 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-28 15:18:43,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,095 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 03:18:43 BoogieIcfgContainer [2020-10-28 15:18:43,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 15:18:43,133 INFO L168 Benchmark]: Toolchain (without parser) took 84911.72 ms. Allocated memory was 125.8 MB in the beginning and 546.3 MB in the end (delta: 420.5 MB). Free memory was 101.0 MB in the beginning and 284.6 MB in the end (delta: -183.6 MB). Peak memory consumption was 324.3 MB. Max. memory is 8.0 GB. [2020-10-28 15:18:43,134 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 15:18:43,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.06 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 91.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 15:18:43,135 INFO L168 Benchmark]: Boogie Preprocessor took 41.77 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 89.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-28 15:18:43,136 INFO L168 Benchmark]: RCFGBuilder took 574.37 ms. Allocated memory is still 125.8 MB. Free memory was 89.2 MB in the beginning and 73.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-28 15:18:43,136 INFO L168 Benchmark]: TraceAbstraction took 84015.17 ms. Allocated memory was 125.8 MB in the beginning and 546.3 MB in the end (delta: 420.5 MB). Free memory was 72.9 MB in the beginning and 284.6 MB in the end (delta: -211.7 MB). Peak memory consumption was 296.0 MB. Max. memory is 8.0 GB. [2020-10-28 15:18:43,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 262.06 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 91.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.77 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 89.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 574.37 ms. Allocated memory is still 125.8 MB. Free memory was 89.2 MB in the beginning and 73.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84015.17 ms. Allocated memory was 125.8 MB in the beginning and 546.3 MB in the end (delta: 420.5 MB). Free memory was 72.9 MB in the beginning and 284.6 MB in the end (delta: -211.7 MB). Peak memory consumption was 296.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 26]: Loop Invariant [2020-10-28 15:18:43,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,178 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((((((((((((unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][str1 + i + 2] == unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][max + str2 + -3] && 0 <= str1) && !(str1 == str2)) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][1]) && unknown-#memory_int-unknown[str1][1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && 5 <= max) && i + j + str2 + 4294967296 * ((max + 4294967295) / 4294967296) <= max + 4294967295) && max <= j + 2) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && !(max + 4294967294 == j + (max + 4294967295) / 4294967296 * 4294967296)) && str1 <= str2) && max <= i + 5) || (((((((j + 5 <= max && !(str1 == str2)) && str1 <= j + str2) && max + str2 <= 5) && 5 <= max) && i + j + str2 + 4294967296 * ((max + 4294967295) / 4294967296) <= max + 4294967295) && max <= j + str2 + 5) && j + str2 + 4294967300 <= str1 + i + 4294967296 * ((max + 4294967295) / 4294967296))) || ((((((((((str1 + i == 1 && !(str1 == str2)) && max + str2 <= 5) && 5 <= max) && unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + i] == unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][j + str2]) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && j + str2 <= str1 + 3) && str1 <= str2) && i <= 1) && str1 + 3 <= j + str2) && unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][max + str2 + -3] == unknown-#memory_int-unknown[str1][str1 + i + 1])) || (((((((((((((!(str1 == str2) && max + 4294967295 <= j + str2 + 4294967296 * ((max + 4294967295) / 4294967296)) && unknown-#memory_int-unknown[str1][1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && unknown-#memory_int-unknown[str1][(max + 4294967295) / 4294967296 * -4294967296 + 4294967296] == unknown-#memory_int-unknown[str2][max + (max + 4294967295) / 4294967296 * -4294967296 + 4294967295]) && 0 <= str1) && max + str2 <= 5) && 5 <= max) && i + j + str2 + 4294967296 * ((max + 4294967295) / 4294967296) <= max + 4294967295) && 0 <= i + 1) && i + 1 <= 0) && unknown-#memory_int-unknown[str1][str1 + i + 3] == unknown-#memory_int-unknown[str2][max + str2 + -3]) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 <= str2)) || (((((((((unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]][str1 + 1] == unknown-#memory_int-unknown[str2 := unknown-#memory_int-unknown[str2][j + str2 := unknown-#memory_int-unknown[str1][str1 + i]]][str1][i + j + str2 + -1] && !(str1 == str2)) && max + str2 <= 5) && 2 <= j + str2) && 5 <= max) && str1 + i == j + str2) && j + 3 <= max) && i <= 2) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && max <= i + 3)) || ((((((((!(str1 == str2) && max + str2 <= 5) && 5 <= max) && j + 4 <= max) && max <= j + str2 + 4) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && str1 + i + 4294967296 * ((max + 4294967295) / 4294967296) <= max + str2 + 4294967294) && max <= i + 2) && str2 + 5 <= str1 + max) - InvariantResult [Line: 32]: Loop Invariant [2020-10-28 15:18:43,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-28 15:18:43,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((!(str1 == str2) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && 5 <= max + str2) && unknown-#memory_int-unknown[str1][(max + 4294967295) / 4294967296 * -4294967296 + 4294967296] == unknown-#memory_int-unknown[str2][max + (max + 4294967295) / 4294967296 * -4294967296 + 4294967295]) && i <= 4) && str2 <= str1) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][max + str2 + -3]) && 0 <= i) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && str2 <= 0) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && max <= i + 1) && str1 <= str2) || (((((((((((((j + str2 <= str1 + 2 && !(str1 == str2)) && str1 + 2 <= j + str2) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && max <= i + 3) && unknown-#memory_int-unknown[str1][(max + 4294967295) / 4294967296 * -4294967296 + 4294967296] == unknown-#memory_int-unknown[str2][max + (max + 4294967295) / 4294967296 * -4294967296 + 4294967295]) && 0 <= str1) && 5 <= max) && 0 <= i) && i <= 2) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && str2 <= 0) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 <= str2)) || (((((((((((((!(str1 == str2) && str1 + 1 <= j + str2) && i <= 3) && unknown-#memory_int-unknown[str1][(max + 4294967295) / 4294967296 * -4294967296 + 4294967296] == unknown-#memory_int-unknown[str2][max + (max + 4294967295) / 4294967296 * -4294967296 + 4294967295]) && unknown-#memory_int-unknown[str2][j + str2 + -1] == unknown-#memory_int-unknown[str1][str1 + i + 1]) && 0 <= str1) && j + str2 <= str1 + 1) && 5 <= max) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][max + str2 + -3]) && 0 <= i) && str2 <= 0) && max <= i + 2) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 <= str2)) || ((((((((((((!(str1 == str2) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && i <= 1) && unknown-#memory_int-unknown[str1][(max + 4294967295) / 4294967296 * -4294967296 + 4294967296] == unknown-#memory_int-unknown[str2][max + (max + 4294967295) / 4294967296 * -4294967296 + 4294967295]) && str1 + i == 1) && max + str2 <= 5) && j + str2 <= 3) && 5 <= max) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][max + str2 + -3]) && 3 <= j + str2) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 <= str2)) || ((((((((((((max <= i && !(str1 == str2)) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && max <= 5) && 5 <= max + str2) && unknown-#memory_int-unknown[str1][(max + 4294967295) / 4294967296 * -4294967296 + 4294967296] == unknown-#memory_int-unknown[str2][max + (max + 4294967295) / 4294967296 * -4294967296 + 4294967295]) && i / 4294967296 < max / 4294967296 + 1) && str2 <= str1) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][max + str2 + -3]) && 0 <= i) && str2 <= 0) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 <= str2)) || ((((((((((((!(str1 == str2) && unknown-#memory_int-unknown[str1][1] == unknown-#memory_int-unknown[str2][max + str2 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967294]) && 0 <= str1 + i) && unknown-#memory_int-unknown[str2][max + str2 + -5] == unknown-#memory_int-unknown[str1][str1 + (max + 4294967295) / 4294967296 * -4294967296 + 4294967300]) && 4 <= j + str2) && max + str2 <= 5) && i == 0) && 5 <= max) && unknown-#memory_int-unknown[str1][str1 + 2] == unknown-#memory_int-unknown[str2][max + str2 + -3]) && j + str2 <= 4) && unknown-#memory_int-unknown[str2][j + str2] == unknown-#memory_int-unknown[str1][str1 + i]) && unknown-#memory_int-unknown[str1][str1 + 3] == unknown-#memory_int-unknown[str2][1]) && str1 <= str2) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((0 <= str1 && !(str1 == str2)) && max + str2 <= 5) && 3 <= i) && str1 <= str2) && str2 + 5 <= str1 + max) && i / 4294967296 < max / 4294967296 + 1) || ((((((0 <= str1 && !(str1 == str2)) && max + str2 <= 5) && 0 <= i) && i <= 2) && str1 <= str2) && str2 + 5 <= str1 + max) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.7s, OverallIterations: 17, TraceHistogramMax: 6, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 334 SDtfs, 441 SDslu, 1006 SDs, 0 SdLazy, 4195 SolverSat, 554 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 25.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 68 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 71 PreInvPairs, 94 NumberOfFragments, 2165 HoareAnnotationTreeSize, 71 FomulaSimplifications, 57861 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 11 FomulaSimplificationsInter, 4745 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 55.6s InterpolantComputationTime, 632 NumberOfCodeBlocks, 632 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 474081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 459/734 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...