/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:37:52,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:37:52,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:37:52,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:37:52,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:37:52,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:37:52,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:37:52,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:37:52,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:37:52,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:37:52,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:37:52,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:37:52,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:37:52,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:37:52,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:37:52,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:37:52,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:37:52,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:37:52,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:37:52,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:37:52,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:37:52,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:37:52,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:37:52,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:37:52,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:37:52,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:37:52,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:37:52,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:37:52,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:37:52,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:37:52,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:37:52,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:37:52,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:37:52,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:37:52,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:37:52,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:37:52,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:37:52,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:37:52,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:37:52,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:37:52,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:37:52,960 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 [2020-09-04 13:37:53,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:37:53,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:37:53,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:37:53,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:37:53,012 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:37:53,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:37:53,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:37:53,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:37:53,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:37:53,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:37:53,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:37:53,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:37:53,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:37:53,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:37:53,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:37:53,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:37:53,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:37:53,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:37:53,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:37:53,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:37:53,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:37:53,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:37:53,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:37:53,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:37:53,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:37:53,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:37:53,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:37:53,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:37:53,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:37:53,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:37:53,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:37:53,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:37:53,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:37:53,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:37:53,483 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:37:53,484 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-09-04 13:37:53,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c1ebcce6/3dc22730b49a4d6d9976fa866d5f51ad/FLAG7312523d1 [2020-09-04 13:37:54,234 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:37:54,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-09-04 13:37:54,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c1ebcce6/3dc22730b49a4d6d9976fa866d5f51ad/FLAG7312523d1 [2020-09-04 13:37:54,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c1ebcce6/3dc22730b49a4d6d9976fa866d5f51ad [2020-09-04 13:37:54,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:37:54,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:37:54,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:37:54,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:37:54,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:37:54,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:37:54" (1/1) ... [2020-09-04 13:37:54,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1922398b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:54, skipping insertion in model container [2020-09-04 13:37:54,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:37:54" (1/1) ... [2020-09-04 13:37:54,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:37:54,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:37:55,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:37:55,059 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:37:55,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:37:55,369 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:37:55,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55 WrapperNode [2020-09-04 13:37:55,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:37:55,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:37:55,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:37:55,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:37:55,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (1/1) ... [2020-09-04 13:37:55,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:37:55,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:37:55,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:37:55,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:37:55,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (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 [2020-09-04 13:37:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:37:55,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:37:55,588 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:37:55,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:37:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:37:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:37:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:37:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:37:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:37:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:37:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:37:56,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:37:56,972 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:37:56,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:37:56 BoogieIcfgContainer [2020-09-04 13:37:56,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:37:56,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:37:56,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:37:56,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:37:56,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:37:54" (1/3) ... [2020-09-04 13:37:56,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb71887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:37:56, skipping insertion in model container [2020-09-04 13:37:56,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:37:55" (2/3) ... [2020-09-04 13:37:56,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb71887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:37:56, skipping insertion in model container [2020-09-04 13:37:56,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:37:56" (3/3) ... [2020-09-04 13:37:57,000 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-09-04 13:37:57,014 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:37:57,029 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:37:57,051 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:37:57,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:37:57,082 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:37:57,082 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:37:57,083 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:37:57,083 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:37:57,083 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:37:57,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:37:57,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:37:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-04 13:37:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-04 13:37:57,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:57,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:57,127 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:57,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:57,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-09-04 13:37:57,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:57,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417040976] [2020-09-04 13:37:57,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:57,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:57,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417040976] [2020-09-04 13:37:57,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:37:57,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:37:57,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462907925] [2020-09-04 13:37:57,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:37:57,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:57,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:37:57,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:37:57,684 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-09-04 13:38:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:00,047 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2020-09-04 13:38:00,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:38:00,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-09-04 13:38:00,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:00,073 INFO L225 Difference]: With dead ends: 730 [2020-09-04 13:38:00,074 INFO L226 Difference]: Without dead ends: 447 [2020-09-04 13:38:00,082 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 [2020-09-04 13:38:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-04 13:38:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2020-09-04 13:38:00,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-04 13:38:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 615 transitions. [2020-09-04 13:38:00,178 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 615 transitions. Word has length 67 [2020-09-04 13:38:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:00,179 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 615 transitions. [2020-09-04 13:38:00,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:38:00,179 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 615 transitions. [2020-09-04 13:38:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-04 13:38:00,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:00,188 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:38:00,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:38:00,189 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:00,190 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-09-04 13:38:00,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:00,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640841242] [2020-09-04 13:38:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:00,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:38:00,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640841242] [2020-09-04 13:38:00,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:38:00,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 13:38:00,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734865017] [2020-09-04 13:38:00,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 13:38:00,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:00,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 13:38:00,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:38:00,615 INFO L87 Difference]: Start difference. First operand 443 states and 615 transitions. Second operand 7 states. [2020-09-04 13:38:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:02,161 INFO L93 Difference]: Finished difference Result 1033 states and 1409 transitions. [2020-09-04 13:38:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:38:02,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-09-04 13:38:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:02,166 INFO L225 Difference]: With dead ends: 1033 [2020-09-04 13:38:02,167 INFO L226 Difference]: Without dead ends: 596 [2020-09-04 13:38:02,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:38:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-09-04 13:38:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 592. [2020-09-04 13:38:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-04 13:38:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 781 transitions. [2020-09-04 13:38:02,208 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 781 transitions. Word has length 144 [2020-09-04 13:38:02,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:02,209 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 781 transitions. [2020-09-04 13:38:02,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 13:38:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 781 transitions. [2020-09-04 13:38:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-04 13:38:02,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:02,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-04 13:38:02,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:38:02,226 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:02,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1146813015, now seen corresponding path program 1 times [2020-09-04 13:38:02,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:02,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101928470] [2020-09-04 13:38:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:02,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 13:38:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 112 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-09-04 13:38:02,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101928470] [2020-09-04 13:38:02,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745228683] [2020-09-04 13:38:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:02,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:38:02,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-04 13:38:03,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:38:03,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:38:03,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721233728] [2020-09-04 13:38:03,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:38:03,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:03,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:38:03,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:38:03,068 INFO L87 Difference]: Start difference. First operand 592 states and 781 transitions. Second operand 3 states. [2020-09-04 13:38:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:03,799 INFO L93 Difference]: Finished difference Result 1033 states and 1429 transitions. [2020-09-04 13:38:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:38:03,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-04 13:38:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:03,807 INFO L225 Difference]: With dead ends: 1033 [2020-09-04 13:38:03,807 INFO L226 Difference]: Without dead ends: 1031 [2020-09-04 13:38:03,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:38:03,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-09-04 13:38:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 739. [2020-09-04 13:38:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-09-04 13:38:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1014 transitions. [2020-09-04 13:38:03,851 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1014 transitions. Word has length 214 [2020-09-04 13:38:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:03,852 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1014 transitions. [2020-09-04 13:38:03,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:38:03,852 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1014 transitions. [2020-09-04 13:38:03,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-09-04 13:38:03,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:03,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-04 13:38:04,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:38:04,078 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:04,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:04,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1807493347, now seen corresponding path program 1 times [2020-09-04 13:38:04,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:04,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768861927] [2020-09-04 13:38:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:04,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:04,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:04,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 13:38:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 187 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:38:04,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768861927] [2020-09-04 13:38:04,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759359716] [2020-09-04 13:38:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:04,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:38:04,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:05,034 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-09-04 13:38:05,035 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:38:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:38:05,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:38:05,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 15 [2020-09-04 13:38:05,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577351021] [2020-09-04 13:38:05,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 13:38:05,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:05,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 13:38:05,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:38:05,141 INFO L87 Difference]: Start difference. First operand 739 states and 1014 transitions. Second operand 15 states. [2020-09-04 13:38:08,342 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-09-04 13:38:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:11,387 INFO L93 Difference]: Finished difference Result 2277 states and 3471 transitions. [2020-09-04 13:38:11,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-04 13:38:11,391 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 256 [2020-09-04 13:38:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:11,405 INFO L225 Difference]: With dead ends: 2277 [2020-09-04 13:38:11,405 INFO L226 Difference]: Without dead ends: 1687 [2020-09-04 13:38:11,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=468, Invalid=1884, Unknown=0, NotChecked=0, Total=2352 [2020-09-04 13:38:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-09-04 13:38:11,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1649. [2020-09-04 13:38:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1649 states. [2020-09-04 13:38:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2293 transitions. [2020-09-04 13:38:11,481 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2293 transitions. Word has length 256 [2020-09-04 13:38:11,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:11,482 INFO L479 AbstractCegarLoop]: Abstraction has 1649 states and 2293 transitions. [2020-09-04 13:38:11,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 13:38:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2293 transitions. [2020-09-04 13:38:11,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-09-04 13:38:11,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:11,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:38:11,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:11,705 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:11,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:11,705 INFO L82 PathProgramCache]: Analyzing trace with hash -550746410, now seen corresponding path program 1 times [2020-09-04 13:38:11,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:11,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944581085] [2020-09-04 13:38:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:11,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:11,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-04 13:38:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 120 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:38:12,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944581085] [2020-09-04 13:38:12,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908741294] [2020-09-04 13:38:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:12,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:38:12,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:12,540 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-04 13:38:12,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:38:12,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-09-04 13:38:12,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082351513] [2020-09-04 13:38:12,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:38:12,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:12,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:38:12,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:38:12,544 INFO L87 Difference]: Start difference. First operand 1649 states and 2293 transitions. Second operand 5 states. [2020-09-04 13:38:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:13,867 INFO L93 Difference]: Finished difference Result 3781 states and 5570 transitions. [2020-09-04 13:38:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:38:13,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-09-04 13:38:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:13,882 INFO L225 Difference]: With dead ends: 3781 [2020-09-04 13:38:13,883 INFO L226 Difference]: Without dead ends: 2281 [2020-09-04 13:38:13,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:38:13,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2020-09-04 13:38:13,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2241. [2020-09-04 13:38:13,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2241 states. [2020-09-04 13:38:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 2880 transitions. [2020-09-04 13:38:13,977 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 2880 transitions. Word has length 281 [2020-09-04 13:38:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:13,977 INFO L479 AbstractCegarLoop]: Abstraction has 2241 states and 2880 transitions. [2020-09-04 13:38:13,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:38:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 2880 transitions. [2020-09-04 13:38:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-09-04 13:38:13,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:13,988 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-09-04 13:38:14,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:14,202 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:14,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:14,203 INFO L82 PathProgramCache]: Analyzing trace with hash 2013092669, now seen corresponding path program 1 times [2020-09-04 13:38:14,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:14,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761048269] [2020-09-04 13:38:14,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:14,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:14,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:14,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-04 13:38:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:14,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-04 13:38:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 188 proven. 218 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:38:14,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761048269] [2020-09-04 13:38:14,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104112432] [2020-09-04 13:38:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:14,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:38:14,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:15,115 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-04 13:38:15,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:38:15,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-09-04 13:38:15,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049628593] [2020-09-04 13:38:15,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 13:38:15,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:15,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 13:38:15,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:38:15,119 INFO L87 Difference]: Start difference. First operand 2241 states and 2880 transitions. Second operand 13 states. [2020-09-04 13:38:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:20,608 INFO L93 Difference]: Finished difference Result 6396 states and 8429 transitions. [2020-09-04 13:38:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-04 13:38:20,610 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 342 [2020-09-04 13:38:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:20,625 INFO L225 Difference]: With dead ends: 6396 [2020-09-04 13:38:20,626 INFO L226 Difference]: Without dead ends: 3105 [2020-09-04 13:38:20,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=275, Invalid=1057, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 13:38:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2020-09-04 13:38:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 2376. [2020-09-04 13:38:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2376 states. [2020-09-04 13:38:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 2953 transitions. [2020-09-04 13:38:20,709 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 2953 transitions. Word has length 342 [2020-09-04 13:38:20,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:20,710 INFO L479 AbstractCegarLoop]: Abstraction has 2376 states and 2953 transitions. [2020-09-04 13:38:20,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 13:38:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 2953 transitions. [2020-09-04 13:38:20,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-09-04 13:38:20,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:20,721 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:38:20,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:20,935 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:20,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:20,936 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-09-04 13:38:20,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:20,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386182407] [2020-09-04 13:38:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:21,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-04 13:38:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:21,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-04 13:38:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 255 proven. 187 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:38:21,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386182407] [2020-09-04 13:38:21,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150463540] [2020-09-04 13:38:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:21,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 12 conjunts are in the unsatisfiable core [2020-09-04 13:38:21,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:21,972 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:38:21,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:22,018 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,023 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:22,040 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,095 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,168 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:22,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,191 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:22,199 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,238 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,239 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:22,246 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,253 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:22,261 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:22,344 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_div_39 already exists [2020-09-04 13:38:22,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:38:22,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-04 13:38:22,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755513520] [2020-09-04 13:38:22,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:38:22,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:22,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:38:22,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:38:22,352 INFO L87 Difference]: Start difference. First operand 2376 states and 2953 transitions. Second operand 11 states. [2020-09-04 13:38:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:27,232 INFO L93 Difference]: Finished difference Result 5499 states and 7017 transitions. [2020-09-04 13:38:27,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 13:38:27,233 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 378 [2020-09-04 13:38:27,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:27,253 INFO L225 Difference]: With dead ends: 5499 [2020-09-04 13:38:27,253 INFO L226 Difference]: Without dead ends: 3272 [2020-09-04 13:38:27,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2020-09-04 13:38:27,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2020-09-04 13:38:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 3117. [2020-09-04 13:38:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2020-09-04 13:38:27,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 3793 transitions. [2020-09-04 13:38:27,369 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 3793 transitions. Word has length 378 [2020-09-04 13:38:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:27,370 INFO L479 AbstractCegarLoop]: Abstraction has 3117 states and 3793 transitions. [2020-09-04 13:38:27,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:38:27,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 3793 transitions. [2020-09-04 13:38:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-09-04 13:38:27,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:27,394 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:38:27,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:38:27,608 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:27,609 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-09-04 13:38:27,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:27,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700126982] [2020-09-04 13:38:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:27,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:27,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:27,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 13:38:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:27,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-04 13:38:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 376 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-04 13:38:28,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700126982] [2020-09-04 13:38:28,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523871559] [2020-09-04 13:38:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:28,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 20 conjunts are in the unsatisfiable core [2020-09-04 13:38:28,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:28,814 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 30 [2020-09-04 13:38:28,826 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:38:28,828 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:38:28,830 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-09-04 13:38:28,858 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_div_39 already exists [2020-09-04 13:38:28,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:38:28,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-04 13:38:28,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695857884] [2020-09-04 13:38:28,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 13:38:28,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:28,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 13:38:28,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:38:28,860 INFO L87 Difference]: Start difference. First operand 3117 states and 3793 transitions. Second operand 12 states. [2020-09-04 13:38:29,595 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-09-04 13:38:29,783 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-09-04 13:38:32,047 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-09-04 13:38:32,358 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-09-04 13:38:32,667 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2020-09-04 13:38:32,857 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-09-04 13:38:33,158 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2020-09-04 13:38:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:33,763 INFO L93 Difference]: Finished difference Result 6101 states and 7457 transitions. [2020-09-04 13:38:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-04 13:38:33,764 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-09-04 13:38:33,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:33,777 INFO L225 Difference]: With dead ends: 6101 [2020-09-04 13:38:33,777 INFO L226 Difference]: Without dead ends: 3133 [2020-09-04 13:38:33,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 341 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=346, Invalid=1136, Unknown=0, NotChecked=0, Total=1482 [2020-09-04 13:38:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2020-09-04 13:38:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 3117. [2020-09-04 13:38:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2020-09-04 13:38:33,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 3750 transitions. [2020-09-04 13:38:33,856 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 3750 transitions. Word has length 397 [2020-09-04 13:38:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:33,857 INFO L479 AbstractCegarLoop]: Abstraction has 3117 states and 3750 transitions. [2020-09-04 13:38:33,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 13:38:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 3750 transitions. [2020-09-04 13:38:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-09-04 13:38:33,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:38:33,871 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:38:34,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:34,085 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:38:34,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:38:34,086 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-09-04 13:38:34,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:38:34,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268111055] [2020-09-04 13:38:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:38:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:34,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:38:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:34,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:38:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 13:38:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:34,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-04 13:38:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-09-04 13:38:34,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268111055] [2020-09-04 13:38:34,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680619655] [2020-09-04 13:38:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:38:34,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:38:34,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:38:34,699 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_div_39 already exists [2020-09-04 13:38:34,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:38:34,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-04 13:38:34,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431925941] [2020-09-04 13:38:34,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:38:34,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:38:34,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:38:34,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:38:34,701 INFO L87 Difference]: Start difference. First operand 3117 states and 3750 transitions. Second operand 5 states. [2020-09-04 13:38:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:38:35,980 INFO L93 Difference]: Finished difference Result 4132 states and 5076 transitions. [2020-09-04 13:38:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:38:35,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 407 [2020-09-04 13:38:35,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:38:35,987 INFO L225 Difference]: With dead ends: 4132 [2020-09-04 13:38:35,988 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:38:35,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:38:35,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:38:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:38:35,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:38:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:38:35,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-09-04 13:38:35,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:38:35,997 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:38:35,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:38:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:38:35,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:38:36,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:38:36,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:38:37,892 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 187 [2020-09-04 13:38:38,295 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 187 [2020-09-04 13:38:39,411 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 49 [2020-09-04 13:38:40,208 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 56 [2020-09-04 13:38:41,015 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 56 [2020-09-04 13:38:41,021 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:38:41,021 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-04 13:38:41,021 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:38:41,021 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-04 13:38:41,021 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-04 13:38:41,022 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-04 13:38:41,023 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-04 13:38:41,023 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-04 13:38:41,023 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-04 13:38:41,023 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-04 13:38:41,023 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-04 13:38:41,024 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-04 13:38:41,024 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-04 13:38:41,024 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-04 13:38:41,024 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,024 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-04 13:38:41,025 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-04 13:38:41,026 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-04 13:38:41,027 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-04 13:38:41,027 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-09-04 13:38:41,027 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-04 13:38:41,027 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,027 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,027 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,028 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,028 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,028 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-04 13:38:41,028 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-04 13:38:41,028 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-04 13:38:41,028 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-04 13:38:41,029 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-04 13:38:41,030 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-04 13:38:41,031 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,032 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-04 13:38:41,033 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,034 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-04 13:38:41,035 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,036 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-04 13:38:41,037 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-04 13:38:41,038 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,039 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-04 13:38:41,040 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-04 13:38:41,041 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-04 13:38:41,042 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse7 (= ~a1~0 |old(~a1~0)|)) (.cse8 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (not (<= |old(~a19~0)| 8))) (.cse1 (and .cse7 (= ~a19~0 |old(~a19~0)|) .cse8)) (.cse4 (and (<= 9 ~a19~0) .cse7 (<= ~a19~0 |old(~a19~0)|) .cse8)) (.cse5 (not (= 9 |old(~a19~0)|))) (.cse6 (= 3 |old(~a10~0)|)) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 0 (+ |old(~a1~0)| 12))) .cse3) (or .cse4 .cse5 (not (<= |old(~a1~0)| 4)) .cse2 .cse3) (or .cse0 .cse1 .cse6) (or (not (<= 23 |old(~a1~0)|)) .cse4 .cse5 .cse2 .cse3) (or .cse1 (not (<= |old(~a10~0)| 2)) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2 .cse3)))) [2020-09-04 13:38:41,042 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-04 13:38:41,042 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-04 13:38:41,042 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-04 13:38:41,042 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,042 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,042 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-04 13:38:41,043 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-04 13:38:41,044 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,045 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-04 13:38:41,046 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,047 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-04 13:38:41,048 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-04 13:38:41,049 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:38:41,050 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (= ~a12~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-09-04 13:38:41,050 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:38:41,050 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:38:41,050 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-09-04 13:38:41,050 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-04 13:38:41,050 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= 23 ~a1~0)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse2 (<= ~a19~0 9)) (.cse5 (not (= ~a10~0 3))) (.cse3 (<= ~a19~0 8)) (.cse4 (<= ~a19~0 |old(~a19~0)|))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 0 (+ ~a1~0 12)) .cse3) (and .cse0 (<= ~a10~0 2)) (and .cse1 (<= ~a1~0 23) .cse4 (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse0 .cse5 .cse4) (and .cse0 (<= 9 ~a19~0) (<= ~a1~0 4) .cse2) (not (<= |old(~a10~0)| 0)) (and .cse5 .cse3 .cse4) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)))) [2020-09-04 13:38:41,051 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-04 13:38:41,051 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-04 13:38:41,051 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= 23 ~a1~0)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse2 (<= ~a19~0 9)) (.cse5 (not (= ~a10~0 3))) (.cse3 (<= ~a19~0 8)) (.cse4 (<= ~a19~0 |old(~a19~0)|))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 0 (+ ~a1~0 12)) .cse3) (and .cse0 (<= ~a10~0 2)) (and .cse1 (<= ~a1~0 23) .cse4 (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse0 .cse5 .cse4) (and .cse0 (<= 9 ~a19~0) (<= ~a1~0 4) .cse2) (not (<= |old(~a10~0)| 0)) (and .cse5 .cse3 .cse4) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)))) [2020-09-04 13:38:41,051 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-04 13:38:41,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:38:41 BoogieIcfgContainer [2020-09-04 13:38:41,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:38:41,087 INFO L168 Benchmark]: Toolchain (without parser) took 46585.50 ms. Allocated memory was 139.5 MB in the beginning and 773.8 MB in the end (delta: 634.4 MB). Free memory was 100.8 MB in the beginning and 659.2 MB in the end (delta: -558.4 MB). Peak memory consumption was 649.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:38:41,088 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 13:38:41,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 868.15 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 100.6 MB in the beginning and 171.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:38:41,092 INFO L168 Benchmark]: Boogie Preprocessor took 128.47 ms. Allocated memory is still 205.5 MB. Free memory was 171.5 MB in the beginning and 167.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:38:41,093 INFO L168 Benchmark]: RCFGBuilder took 1487.54 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.2 MB in the beginning and 183.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:38:41,093 INFO L168 Benchmark]: TraceAbstraction took 44093.06 ms. Allocated memory was 238.0 MB in the beginning and 773.8 MB in the end (delta: 535.8 MB). Free memory was 182.0 MB in the beginning and 659.2 MB in the end (delta: -477.3 MB). Peak memory consumption was 632.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:38:41,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 868.15 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 100.6 MB in the beginning and 171.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.47 ms. Allocated memory is still 205.5 MB. Free memory was 171.5 MB in the beginning and 167.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1487.54 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.2 MB in the beginning and 183.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44093.06 ms. Allocated memory was 238.0 MB in the beginning and 773.8 MB in the end (delta: 535.8 MB). Free memory was 182.0 MB in the beginning and 659.2 MB in the end (delta: -477.3 MB). Peak memory consumption was 632.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 23 <= a1) && a19 <= 9) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 0 <= a1 + 12) && a19 <= 8)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 <= 2)) || (((23 <= a1 && a1 <= 23) && a19 <= \old(a19)) && a10 == \old(a10))) || !(a12 == 0)) || !(23 <= \old(a1))) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && !(a10 == 3)) && a19 <= \old(a19))) || ((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 9 <= a19) && a1 <= 4) && a19 <= 9)) || !(\old(a10) <= 0)) || ((!(a10 == 3) && a19 <= 8) && a19 <= \old(a19))) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.1s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 286 SDtfs, 7574 SDslu, 484 SDs, 0 SdLazy, 13129 SolverSat, 2989 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2151 GetRequests, 1971 SyntacticMatches, 1 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3117occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 1278 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 111 PreInvPairs, 187 NumberOfFragments, 516 HoareAnnotationTreeSize, 111 FomulaSimplifications, 15919 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11759 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3579 NumberOfCodeBlocks, 3579 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3566 ConstructedInterpolants, 0 QuantifiedInterpolants, 3046356 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1822 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 2935/3451 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...