/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 17:25:18,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 17:25:18,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 17:25:18,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 17:25:18,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 17:25:18,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 17:25:18,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 17:25:18,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 17:25:18,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 17:25:18,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 17:25:18,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 17:25:18,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 17:25:18,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 17:25:18,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 17:25:18,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 17:25:18,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 17:25:18,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 17:25:18,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 17:25:18,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 17:25:18,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 17:25:18,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 17:25:18,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 17:25:18,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 17:25:18,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 17:25:18,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 17:25:18,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 17:25:18,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 17:25:18,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 17:25:18,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 17:25:18,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 17:25:18,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 17:25:18,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 17:25:18,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 17:25:18,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 17:25:18,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 17:25:18,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 17:25:18,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 17:25:18,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 17:25:18,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 17:25:18,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 17:25:18,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 17:25:18,603 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 [2020-08-21 17:25:18,639 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 17:25:18,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 17:25:18,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 17:25:18,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 17:25:18,642 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 17:25:18,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 17:25:18,643 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 17:25:18,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 17:25:18,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 17:25:18,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 17:25:18,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 17:25:18,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 17:25:18,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 17:25:18,645 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 17:25:18,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 17:25:18,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 17:25:18,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 17:25:18,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 17:25:18,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 17:25:18,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 17:25:18,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 17:25:18,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:25:18,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 17:25:18,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-08-21 17:25:18,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 17:25:18,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 17:25:18,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 17:25:18,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 17:25:18,996 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 17:25:18,997 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-21 17:25:19,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/307cc8554/405d4d63342d48908d24e9dc8ca041f4/FLAG2a2852516 [2020-08-21 17:25:19,666 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 17:25:19,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-21 17:25:19,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/307cc8554/405d4d63342d48908d24e9dc8ca041f4/FLAG2a2852516 [2020-08-21 17:25:19,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/307cc8554/405d4d63342d48908d24e9dc8ca041f4 [2020-08-21 17:25:19,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 17:25:19,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 17:25:19,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 17:25:19,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 17:25:19,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 17:25:19,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:25:19" (1/1) ... [2020-08-21 17:25:19,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df9f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:19, skipping insertion in model container [2020-08-21 17:25:19,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:25:19" (1/1) ... [2020-08-21 17:25:20,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 17:25:20,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 17:25:20,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:25:20,660 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 17:25:20,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:25:20,901 INFO L208 MainTranslator]: Completed translation [2020-08-21 17:25:20,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20 WrapperNode [2020-08-21 17:25:20,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 17:25:20,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 17:25:20,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 17:25:20,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 17:25:20,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:20,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:20,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:20,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:21,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:21,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:21,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (1/1) ... [2020-08-21 17:25:21,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 17:25:21,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 17:25:21,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 17:25:21,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 17:25:21,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (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 [2020-08-21 17:25:21,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 17:25:21,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 17:25:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 17:25:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 17:25:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 17:25:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 17:25:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 17:25:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 17:25:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 17:25:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 17:25:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 17:25:22,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 17:25:22,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 17:25:22,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:25:22 BoogieIcfgContainer [2020-08-21 17:25:22,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 17:25:22,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 17:25:22,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 17:25:22,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 17:25:22,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:25:19" (1/3) ... [2020-08-21 17:25:22,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18592043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:25:22, skipping insertion in model container [2020-08-21 17:25:22,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:25:20" (2/3) ... [2020-08-21 17:25:22,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18592043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:25:22, skipping insertion in model container [2020-08-21 17:25:22,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:25:22" (3/3) ... [2020-08-21 17:25:22,883 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-08-21 17:25:22,894 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 17:25:22,903 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 17:25:22,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 17:25:22,946 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 17:25:22,947 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 17:25:22,947 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 17:25:22,947 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 17:25:22,947 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 17:25:22,947 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 17:25:22,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 17:25:22,948 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 17:25:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-08-21 17:25:22,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-21 17:25:22,981 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:22,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:22,983 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:22,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:22,992 INFO L82 PathProgramCache]: Analyzing trace with hash 406410443, now seen corresponding path program 1 times [2020-08-21 17:25:23,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:23,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172112348] [2020-08-21 17:25:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:23,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:25:23,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172112348] [2020-08-21 17:25:23,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:25:23,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 17:25:23,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223295480] [2020-08-21 17:25:23,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 17:25:23,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:23,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 17:25:23,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:25:23,404 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-08-21 17:25:26,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:26,208 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-08-21 17:25:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 17:25:26,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-08-21 17:25:26,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:26,235 INFO L225 Difference]: With dead ends: 886 [2020-08-21 17:25:26,235 INFO L226 Difference]: Without dead ends: 564 [2020-08-21 17:25:26,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:25:26,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-08-21 17:25:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-08-21 17:25:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-08-21 17:25:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 861 transitions. [2020-08-21 17:25:26,342 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 861 transitions. Word has length 54 [2020-08-21 17:25:26,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:26,343 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 861 transitions. [2020-08-21 17:25:26,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 17:25:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 861 transitions. [2020-08-21 17:25:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-21 17:25:26,355 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:26,355 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:26,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 17:25:26,356 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:26,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:26,357 INFO L82 PathProgramCache]: Analyzing trace with hash -724645666, now seen corresponding path program 1 times [2020-08-21 17:25:26,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:26,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22457739] [2020-08-21 17:25:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:26,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:26,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:25:26,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22457739] [2020-08-21 17:25:26,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:25:26,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 17:25:26,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655997626] [2020-08-21 17:25:26,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 17:25:26,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:26,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 17:25:26,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:25:26,733 INFO L87 Difference]: Start difference. First operand 560 states and 861 transitions. Second operand 7 states. [2020-08-21 17:25:28,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:28,759 INFO L93 Difference]: Finished difference Result 1518 states and 2374 transitions. [2020-08-21 17:25:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 17:25:28,760 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-08-21 17:25:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:28,769 INFO L225 Difference]: With dead ends: 1518 [2020-08-21 17:25:28,770 INFO L226 Difference]: Without dead ends: 964 [2020-08-21 17:25:28,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 17:25:28,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-08-21 17:25:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 944. [2020-08-21 17:25:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-08-21 17:25:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2020-08-21 17:25:28,830 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 148 [2020-08-21 17:25:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:28,831 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2020-08-21 17:25:28,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 17:25:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2020-08-21 17:25:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-21 17:25:28,839 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:28,839 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:28,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 17:25:28,840 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:28,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:28,840 INFO L82 PathProgramCache]: Analyzing trace with hash 2026240930, now seen corresponding path program 1 times [2020-08-21 17:25:28,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:28,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403057561] [2020-08-21 17:25:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:25:29,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403057561] [2020-08-21 17:25:29,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:25:29,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 17:25:29,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427549389] [2020-08-21 17:25:29,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 17:25:29,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:29,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 17:25:29,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 17:25:29,284 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand 8 states. [2020-08-21 17:25:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:31,337 INFO L93 Difference]: Finished difference Result 2490 states and 3798 transitions. [2020-08-21 17:25:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 17:25:31,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-08-21 17:25:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:31,351 INFO L225 Difference]: With dead ends: 2490 [2020-08-21 17:25:31,351 INFO L226 Difference]: Without dead ends: 1552 [2020-08-21 17:25:31,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:25:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-08-21 17:25:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1518. [2020-08-21 17:25:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-08-21 17:25:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2119 transitions. [2020-08-21 17:25:31,425 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2119 transitions. Word has length 194 [2020-08-21 17:25:31,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:31,425 INFO L479 AbstractCegarLoop]: Abstraction has 1518 states and 2119 transitions. [2020-08-21 17:25:31,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 17:25:31,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2119 transitions. [2020-08-21 17:25:31,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-08-21 17:25:31,441 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:31,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:31,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 17:25:31,442 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:31,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1200176176, now seen corresponding path program 1 times [2020-08-21 17:25:31,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:31,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461275000] [2020-08-21 17:25:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:31,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:31,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:31,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 17:25:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 94 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-21 17:25:31,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461275000] [2020-08-21 17:25:31,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:31,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 17:25:31,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760895521] [2020-08-21 17:25:31,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 17:25:31,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:31,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 17:25:31,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 17:25:31,823 INFO L87 Difference]: Start difference. First operand 1518 states and 2119 transitions. Second operand 8 states. [2020-08-21 17:25:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:33,853 INFO L93 Difference]: Finished difference Result 3412 states and 4693 transitions. [2020-08-21 17:25:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 17:25:33,854 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-08-21 17:25:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:33,865 INFO L225 Difference]: With dead ends: 3412 [2020-08-21 17:25:33,865 INFO L226 Difference]: Without dead ends: 1900 [2020-08-21 17:25:33,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 17:25:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-08-21 17:25:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1890. [2020-08-21 17:25:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2020-08-21 17:25:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2517 transitions. [2020-08-21 17:25:33,940 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2517 transitions. Word has length 213 [2020-08-21 17:25:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:33,940 INFO L479 AbstractCegarLoop]: Abstraction has 1890 states and 2517 transitions. [2020-08-21 17:25:33,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 17:25:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2517 transitions. [2020-08-21 17:25:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-08-21 17:25:33,947 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:33,947 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:33,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 17:25:33,948 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:33,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:33,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1683146711, now seen corresponding path program 1 times [2020-08-21 17:25:33,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:33,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980701568] [2020-08-21 17:25:33,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:34,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:34,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 17:25:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:34,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-21 17:25:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:34,641 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 175 proven. 194 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-21 17:25:34,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980701568] [2020-08-21 17:25:34,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:34,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 17:25:34,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603393710] [2020-08-21 17:25:34,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:25:34,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:34,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:25:34,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:25:34,645 INFO L87 Difference]: Start difference. First operand 1890 states and 2517 transitions. Second operand 9 states. [2020-08-21 17:25:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:37,711 INFO L93 Difference]: Finished difference Result 3677 states and 4968 transitions. [2020-08-21 17:25:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 17:25:37,712 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 297 [2020-08-21 17:25:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:37,723 INFO L225 Difference]: With dead ends: 3677 [2020-08-21 17:25:37,724 INFO L226 Difference]: Without dead ends: 1930 [2020-08-21 17:25:37,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-21 17:25:37,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2020-08-21 17:25:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1882. [2020-08-21 17:25:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-08-21 17:25:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2280 transitions. [2020-08-21 17:25:37,787 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2280 transitions. Word has length 297 [2020-08-21 17:25:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:37,787 INFO L479 AbstractCegarLoop]: Abstraction has 1882 states and 2280 transitions. [2020-08-21 17:25:37,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:25:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2280 transitions. [2020-08-21 17:25:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-08-21 17:25:37,797 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:37,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:37,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 17:25:37,798 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:37,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:37,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1242283415, now seen corresponding path program 1 times [2020-08-21 17:25:37,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:37,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595453751] [2020-08-21 17:25:37,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:37,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:38,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:25:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:38,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:25:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:38,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-21 17:25:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:38,422 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 414 proven. 11 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-08-21 17:25:38,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595453751] [2020-08-21 17:25:38,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:38,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 17:25:38,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768580770] [2020-08-21 17:25:38,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:25:38,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:38,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:25:38,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:25:38,437 INFO L87 Difference]: Start difference. First operand 1882 states and 2280 transitions. Second operand 9 states. [2020-08-21 17:25:43,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:43,093 INFO L93 Difference]: Finished difference Result 5238 states and 6410 transitions. [2020-08-21 17:25:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-21 17:25:43,093 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 432 [2020-08-21 17:25:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:43,110 INFO L225 Difference]: With dead ends: 5238 [2020-08-21 17:25:43,110 INFO L226 Difference]: Without dead ends: 3356 [2020-08-21 17:25:43,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-08-21 17:25:43,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2020-08-21 17:25:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 2438. [2020-08-21 17:25:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-08-21 17:25:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 2779 transitions. [2020-08-21 17:25:43,186 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 2779 transitions. Word has length 432 [2020-08-21 17:25:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:43,187 INFO L479 AbstractCegarLoop]: Abstraction has 2438 states and 2779 transitions. [2020-08-21 17:25:43,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:25:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 2779 transitions. [2020-08-21 17:25:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-08-21 17:25:43,201 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:43,202 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:43,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 17:25:43,202 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:43,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:43,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1681885400, now seen corresponding path program 1 times [2020-08-21 17:25:43,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:43,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751164627] [2020-08-21 17:25:43,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:43,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:43,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:25:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:43,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:25:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:43,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-21 17:25:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:43,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-21 17:25:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 638 proven. 209 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-08-21 17:25:44,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751164627] [2020-08-21 17:25:44,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:44,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 17:25:44,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613120152] [2020-08-21 17:25:44,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 17:25:44,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:44,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 17:25:44,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:25:44,494 INFO L87 Difference]: Start difference. First operand 2438 states and 2779 transitions. Second operand 10 states. [2020-08-21 17:25:47,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:47,650 INFO L93 Difference]: Finished difference Result 5701 states and 6650 transitions. [2020-08-21 17:25:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 17:25:47,651 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 552 [2020-08-21 17:25:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:47,668 INFO L225 Difference]: With dead ends: 5701 [2020-08-21 17:25:47,668 INFO L226 Difference]: Without dead ends: 3400 [2020-08-21 17:25:47,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-08-21 17:25:47,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-08-21 17:25:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3174. [2020-08-21 17:25:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2020-08-21 17:25:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3494 transitions. [2020-08-21 17:25:47,747 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3494 transitions. Word has length 552 [2020-08-21 17:25:47,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:47,748 INFO L479 AbstractCegarLoop]: Abstraction has 3174 states and 3494 transitions. [2020-08-21 17:25:47,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 17:25:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3494 transitions. [2020-08-21 17:25:47,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-08-21 17:25:47,764 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:47,764 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:47,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 17:25:47,765 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:47,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:47,765 INFO L82 PathProgramCache]: Analyzing trace with hash 60264982, now seen corresponding path program 1 times [2020-08-21 17:25:47,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:47,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431157290] [2020-08-21 17:25:47,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:48,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:48,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:25:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:48,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:25:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:48,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-08-21 17:25:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 415 proven. 136 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-08-21 17:25:48,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431157290] [2020-08-21 17:25:48,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:48,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 17:25:48,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092780226] [2020-08-21 17:25:48,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 17:25:48,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:48,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 17:25:48,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:25:48,894 INFO L87 Difference]: Start difference. First operand 3174 states and 3494 transitions. Second operand 10 states. [2020-08-21 17:25:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:51,984 INFO L93 Difference]: Finished difference Result 5994 states and 6641 transitions. [2020-08-21 17:25:51,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-21 17:25:51,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 585 [2020-08-21 17:25:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:52,000 INFO L225 Difference]: With dead ends: 5994 [2020-08-21 17:25:52,000 INFO L226 Difference]: Without dead ends: 3192 [2020-08-21 17:25:52,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-08-21 17:25:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-08-21 17:25:52,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3178. [2020-08-21 17:25:52,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-21 17:25:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3485 transitions. [2020-08-21 17:25:52,086 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3485 transitions. Word has length 585 [2020-08-21 17:25:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:52,087 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3485 transitions. [2020-08-21 17:25:52,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 17:25:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3485 transitions. [2020-08-21 17:25:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-08-21 17:25:52,096 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:52,096 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:52,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 17:25:52,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:52,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:52,098 INFO L82 PathProgramCache]: Analyzing trace with hash 762745801, now seen corresponding path program 2 times [2020-08-21 17:25:52,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:52,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951520458] [2020-08-21 17:25:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:52,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:52,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:52,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:25:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:25:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:52,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-21 17:25:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-08-21 17:25:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 579 proven. 140 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2020-08-21 17:25:53,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951520458] [2020-08-21 17:25:53,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:53,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 17:25:53,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117951679] [2020-08-21 17:25:53,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:25:53,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:53,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:25:53,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:25:53,419 INFO L87 Difference]: Start difference. First operand 3178 states and 3485 transitions. Second operand 9 states. [2020-08-21 17:25:55,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:25:55,858 INFO L93 Difference]: Finished difference Result 6354 states and 6980 transitions. [2020-08-21 17:25:55,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 17:25:55,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 695 [2020-08-21 17:25:55,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:25:55,872 INFO L225 Difference]: With dead ends: 6354 [2020-08-21 17:25:55,872 INFO L226 Difference]: Without dead ends: 3364 [2020-08-21 17:25:55,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-08-21 17:25:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2020-08-21 17:25:55,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3178. [2020-08-21 17:25:55,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-21 17:25:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3483 transitions. [2020-08-21 17:25:55,944 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3483 transitions. Word has length 695 [2020-08-21 17:25:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:25:55,945 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3483 transitions. [2020-08-21 17:25:55,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:25:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3483 transitions. [2020-08-21 17:25:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2020-08-21 17:25:55,954 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:25:55,954 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:25:55,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 17:25:55,955 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:25:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:25:55,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1185073778, now seen corresponding path program 1 times [2020-08-21 17:25:55,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:25:55,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584966223] [2020-08-21 17:25:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:25:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:25:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:56,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:25:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:56,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:25:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:56,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:25:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-21 17:25:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2020-08-21 17:25:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:25:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 586 proven. 140 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2020-08-21 17:25:57,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584966223] [2020-08-21 17:25:57,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:25:57,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 17:25:57,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954686337] [2020-08-21 17:25:57,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 17:25:57,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:25:57,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 17:25:57,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:25:57,216 INFO L87 Difference]: Start difference. First operand 3178 states and 3483 transitions. Second operand 10 states. [2020-08-21 17:26:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:26:00,780 INFO L93 Difference]: Finished difference Result 6540 states and 7198 transitions. [2020-08-21 17:26:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-21 17:26:00,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 702 [2020-08-21 17:26:00,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:26:00,799 INFO L225 Difference]: With dead ends: 6540 [2020-08-21 17:26:00,800 INFO L226 Difference]: Without dead ends: 3552 [2020-08-21 17:26:00,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-21 17:26:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2020-08-21 17:26:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3548. [2020-08-21 17:26:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2020-08-21 17:26:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 3868 transitions. [2020-08-21 17:26:00,888 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 3868 transitions. Word has length 702 [2020-08-21 17:26:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:26:00,889 INFO L479 AbstractCegarLoop]: Abstraction has 3548 states and 3868 transitions. [2020-08-21 17:26:00,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 17:26:00,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 3868 transitions. [2020-08-21 17:26:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2020-08-21 17:26:00,901 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:26:00,902 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:26:00,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 17:26:00,902 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:26:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:26:00,904 INFO L82 PathProgramCache]: Analyzing trace with hash 326490438, now seen corresponding path program 1 times [2020-08-21 17:26:00,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:26:00,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832262060] [2020-08-21 17:26:00,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:26:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:26:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:26:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:26:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:26:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-21 17:26:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-21 17:26:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 733 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-08-21 17:26:01,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832262060] [2020-08-21 17:26:01,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:26:01,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 17:26:01,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564209001] [2020-08-21 17:26:01,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 17:26:01,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:26:01,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 17:26:01,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:26:01,624 INFO L87 Difference]: Start difference. First operand 3548 states and 3868 transitions. Second operand 7 states. [2020-08-21 17:26:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:26:03,114 INFO L93 Difference]: Finished difference Result 8032 states and 8888 transitions. [2020-08-21 17:26:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 17:26:03,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 728 [2020-08-21 17:26:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:26:03,131 INFO L225 Difference]: With dead ends: 8032 [2020-08-21 17:26:03,131 INFO L226 Difference]: Without dead ends: 4674 [2020-08-21 17:26:03,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-21 17:26:03,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-08-21 17:26:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4292. [2020-08-21 17:26:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-21 17:26:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4748 transitions. [2020-08-21 17:26:03,257 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4748 transitions. Word has length 728 [2020-08-21 17:26:03,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:26:03,258 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4748 transitions. [2020-08-21 17:26:03,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 17:26:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4748 transitions. [2020-08-21 17:26:03,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2020-08-21 17:26:03,268 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:26:03,269 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:26:03,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 17:26:03,270 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:26:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:26:03,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1244120290, now seen corresponding path program 1 times [2020-08-21 17:26:03,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:26:03,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387307903] [2020-08-21 17:26:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:26:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:26:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:26:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:26:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:26:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-21 17:26:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-21 17:26:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2020-08-21 17:26:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 291 proven. 6 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2020-08-21 17:26:03,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387307903] [2020-08-21 17:26:03,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:26:03,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 17:26:04,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658097410] [2020-08-21 17:26:04,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 17:26:04,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:26:04,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 17:26:04,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:26:04,001 INFO L87 Difference]: Start difference. First operand 4292 states and 4748 transitions. Second operand 5 states. [2020-08-21 17:26:05,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:26:05,240 INFO L93 Difference]: Finished difference Result 4296 states and 4751 transitions. [2020-08-21 17:26:05,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 17:26:05,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 783 [2020-08-21 17:26:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:26:05,254 INFO L225 Difference]: With dead ends: 4296 [2020-08-21 17:26:05,254 INFO L226 Difference]: Without dead ends: 4294 [2020-08-21 17:26:05,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 17:26:05,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-08-21 17:26:05,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4292. [2020-08-21 17:26:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-21 17:26:05,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4747 transitions. [2020-08-21 17:26:05,337 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4747 transitions. Word has length 783 [2020-08-21 17:26:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:26:05,338 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4747 transitions. [2020-08-21 17:26:05,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 17:26:05,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4747 transitions. [2020-08-21 17:26:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-08-21 17:26:05,351 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:26:05,352 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:26:05,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 17:26:05,353 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:26:05,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:26:05,353 INFO L82 PathProgramCache]: Analyzing trace with hash 277730204, now seen corresponding path program 1 times [2020-08-21 17:26:05,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:26:05,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885117654] [2020-08-21 17:26:05,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:26:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:26:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:26:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:26:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:26:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-21 17:26:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-21 17:26:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-21 17:26:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-21 17:26:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:06,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2344 backedges. 340 proven. 7 refuted. 0 times theorem prover too weak. 1997 trivial. 0 not checked. [2020-08-21 17:26:06,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885117654] [2020-08-21 17:26:06,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:26:06,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 17:26:06,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141482679] [2020-08-21 17:26:06,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 17:26:06,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:26:06,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 17:26:06,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:26:06,155 INFO L87 Difference]: Start difference. First operand 4292 states and 4747 transitions. Second operand 5 states. [2020-08-21 17:26:07,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:26:07,296 INFO L93 Difference]: Finished difference Result 4668 states and 5158 transitions. [2020-08-21 17:26:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 17:26:07,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 828 [2020-08-21 17:26:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:26:07,343 INFO L225 Difference]: With dead ends: 4668 [2020-08-21 17:26:07,344 INFO L226 Difference]: Without dead ends: 4666 [2020-08-21 17:26:07,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 17:26:07,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2020-08-21 17:26:07,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4292. [2020-08-21 17:26:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-21 17:26:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4751 transitions. [2020-08-21 17:26:07,431 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4751 transitions. Word has length 828 [2020-08-21 17:26:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:26:07,432 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4751 transitions. [2020-08-21 17:26:07,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 17:26:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4751 transitions. [2020-08-21 17:26:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2020-08-21 17:26:07,453 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:26:07,454 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:26:07,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 17:26:07,455 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:26:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:26:07,455 INFO L82 PathProgramCache]: Analyzing trace with hash 117494447, now seen corresponding path program 1 times [2020-08-21 17:26:07,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:26:07,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330044721] [2020-08-21 17:26:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:26:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:26:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 17:26:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-21 17:26:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-21 17:26:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-21 17:26:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-21 17:26:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-21 17:26:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:07,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-21 17:26:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:26:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 337 proven. 28 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2020-08-21 17:26:08,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330044721] [2020-08-21 17:26:08,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:26:08,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 17:26:08,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505731393] [2020-08-21 17:26:08,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 17:26:08,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:26:08,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 17:26:08,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 17:26:08,491 INFO L87 Difference]: Start difference. First operand 4292 states and 4751 transitions. Second operand 7 states. [2020-08-21 17:26:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:26:11,093 INFO L93 Difference]: Finished difference Result 4854 states and 5352 transitions. [2020-08-21 17:26:11,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 17:26:11,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 839 [2020-08-21 17:26:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:26:11,096 INFO L225 Difference]: With dead ends: 4854 [2020-08-21 17:26:11,097 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 17:26:11,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:26:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 17:26:11,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 17:26:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 17:26:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 17:26:11,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 839 [2020-08-21 17:26:11,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:26:11,107 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 17:26:11,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 17:26:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 17:26:11,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 17:26:11,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 17:26:11,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 17:26:11,660 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 163 [2020-08-21 17:26:11,848 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 163 [2020-08-21 17:26:12,767 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 41 [2020-08-21 17:26:13,424 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 38 [2020-08-21 17:26:14,073 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 38 [2020-08-21 17:26:14,077 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 17:26:14,077 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-08-21 17:26:14,078 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,079 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,080 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-08-21 17:26:14,081 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-08-21 17:26:14,082 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-08-21 17:26:14,083 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-08-21 17:26:14,084 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (= |old(~a24~0)| 1))) (.cse1 (and .cse2 (= ~a24~0 1) .cse3 .cse4))) (and (or .cse0 .cse1 (not (= 9 |old(~a15~0)|))) (or (and (= ~a24~0 |old(~a24~0)|) .cse2 .cse3 .cse4) (let ((.cse5 (not (<= |old(~a15~0)| 6)))) (and (or (= 8 |old(~a21~0)|) .cse5) (or .cse0 .cse5 (not (<= |old(~a12~0)| 80)))))) (or .cse0 .cse1 (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a15~0)|)))))) [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-08-21 17:26:14,085 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,086 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,087 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-08-21 17:26:14,088 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-21 17:26:14,089 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-08-21 17:26:14,090 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-08-21 17:26:14,091 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,092 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-08-21 17:26:14,093 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-08-21 17:26:14,094 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-08-21 17:26:14,095 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-08-21 17:26:14,096 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 17:26:14,097 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-08-21 17:26:14,097 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 17:26:14,098 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 17:26:14,098 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-08-21 17:26:14,098 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-08-21 17:26:14,098 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 6))) (or (and (<= 7 ~a15~0) .cse0 (<= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a15~0 9)) (not (= 8 |old(~a15~0)|)) (and .cse0 (<= ~a12~0 80) .cse1) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 8)) .cse1))) [2020-08-21 17:26:14,098 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-08-21 17:26:14,098 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-21 17:26:14,099 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 6))) (or (and (<= 7 ~a15~0) .cse0 (<= ~a15~0 8)) (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a15~0 9)) (not (= 8 |old(~a15~0)|)) (and .cse0 (<= ~a12~0 80) .cse1) (not (<= (+ |old(~a12~0)| 49) 0)) (and (not (= ~a21~0 8)) .cse1))) [2020-08-21 17:26:14,099 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-08-21 17:26:14,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:26:14 BoogieIcfgContainer [2020-08-21 17:26:14,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 17:26:14,120 INFO L168 Benchmark]: Toolchain (without parser) took 54135.89 ms. Allocated memory was 147.3 MB in the beginning and 1.0 GB in the end (delta: 863.5 MB). Free memory was 101.1 MB in the beginning and 426.2 MB in the end (delta: -325.1 MB). Peak memory consumption was 881.0 MB. Max. memory is 7.1 GB. [2020-08-21 17:26:14,121 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 17:26:14,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 916.66 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 100.9 MB in the beginning and 169.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-08-21 17:26:14,123 INFO L168 Benchmark]: Boogie Preprocessor took 156.29 ms. Allocated memory is still 207.1 MB. Free memory was 169.4 MB in the beginning and 163.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-21 17:26:14,123 INFO L168 Benchmark]: RCFGBuilder took 1814.92 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 163.9 MB in the beginning and 152.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2020-08-21 17:26:14,124 INFO L168 Benchmark]: TraceAbstraction took 51242.72 ms. Allocated memory was 237.5 MB in the beginning and 1.0 GB in the end (delta: 773.3 MB). Free memory was 152.8 MB in the beginning and 426.2 MB in the end (delta: -273.5 MB). Peak memory consumption was 842.5 MB. Max. memory is 7.1 GB. [2020-08-21 17:26:14,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 916.66 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 100.9 MB in the beginning and 169.4 MB in the end (delta: -68.4 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.29 ms. Allocated memory is still 207.1 MB. Free memory was 169.4 MB in the beginning and 163.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1814.92 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 163.9 MB in the beginning and 152.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51242.72 ms. Allocated memory was 237.5 MB in the beginning and 1.0 GB in the end (delta: 773.3 MB). Free memory was 152.8 MB in the beginning and 426.2 MB in the end (delta: -273.5 MB). Peak memory consumption was 842.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((7 <= a15 && a24 == 1) && a15 <= 8) || !(7 == \old(a21))) || !(\old(a24) == 1)) || (a24 == 1 && a15 == 9)) || !(8 == \old(a15))) || ((a24 == 1 && a12 <= 80) && a15 <= 6)) || !(\old(a12) + 49 <= 0)) || (!(a21 == 8) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 48.1s, OverallIterations: 14, TraceHistogramMax: 8, AutomataDifference: 35.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 14454 SDslu, 532 SDs, 0 SdLazy, 18427 SolverSat, 3161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 229 SyntacticMatches, 2 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4292occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 2222 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 148 PreInvPairs, 210 NumberOfFragments, 276 HoareAnnotationTreeSize, 148 FomulaSimplifications, 57628 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16896 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 7050 NumberOfCodeBlocks, 7050 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7036 ConstructedInterpolants, 0 QuantifiedInterpolants, 11310831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 13071/14015 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...