/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:33:10,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:33:10,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:33:10,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:33:10,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:33:10,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:33:10,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:33:10,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:33:10,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:33:10,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:33:10,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:33:10,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:33:10,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:33:10,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:33:10,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:33:10,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:33:10,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:33:10,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:33:10,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:33:10,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:33:10,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:33:10,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:33:10,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:33:10,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:33:10,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:33:10,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:33:10,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:33:10,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:33:10,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 23:33:10,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:33:10,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:33:10,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:33:10,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:33:10,470 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:33:10,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:33:10,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:33:10,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:33:10,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:33:10,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:33:10,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:33:10,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:33:10,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:33:10,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:33:10,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:33:10,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:33:10,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:33:10,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:33:10,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:33:10,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:33:10,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:33:10,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:33:10,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:33:10,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:33:10,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:33:10,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:33:10,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:33:10,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:33:10,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:33:10,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:33:10,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:33:10,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:33:10,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:33:10,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:33:10,828 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:33:10,828 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-07-19 23:33:10,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bef808e/010dba792d174128a5961bf00692c5fe/FLAG6897fcb68 [2020-07-19 23:33:11,555 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:33:11,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-07-19 23:33:11,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bef808e/010dba792d174128a5961bf00692c5fe/FLAG6897fcb68 [2020-07-19 23:33:11,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bef808e/010dba792d174128a5961bf00692c5fe [2020-07-19 23:33:11,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:33:11,822 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:33:11,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:33:11,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:33:11,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:33:11,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:33:11" (1/1) ... [2020-07-19 23:33:11,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a5b008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:11, skipping insertion in model container [2020-07-19 23:33:11,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:33:11" (1/1) ... [2020-07-19 23:33:11,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:33:11,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:33:12,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:33:12,531 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:33:12,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:33:12,710 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:33:12,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12 WrapperNode [2020-07-19 23:33:12,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:33:12,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:33:12,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:33:12,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:33:12,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... [2020-07-19 23:33:12,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:33:12,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:33:12,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:33:12,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:33:12,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 23:33:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:33:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:33:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 23:33:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:33:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 23:33:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:33:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:33:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:33:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:33:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:33:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:33:14,840 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:33:14,841 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:33:14,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:33:14 BoogieIcfgContainer [2020-07-19 23:33:14,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:33:14,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:33:14,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:33:14,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:33:14,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:33:11" (1/3) ... [2020-07-19 23:33:14,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289c3d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:33:14, skipping insertion in model container [2020-07-19 23:33:14,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:33:12" (2/3) ... [2020-07-19 23:33:14,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289c3d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:33:14, skipping insertion in model container [2020-07-19 23:33:14,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:33:14" (3/3) ... [2020-07-19 23:33:14,862 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2020-07-19 23:33:14,878 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:33:14,891 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:33:14,912 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:33:14,950 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:33:14,951 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:33:14,951 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:33:14,951 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:33:14,952 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:33:14,952 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:33:14,952 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:33:14,952 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:33:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-19 23:33:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-19 23:33:14,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:14,999 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] [2020-07-19 23:33:15,000 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:15,009 INFO L82 PathProgramCache]: Analyzing trace with hash 2061919546, now seen corresponding path program 1 times [2020-07-19 23:33:15,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:15,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790451805] [2020-07-19 23:33:15,025 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:33:15,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790451805] [2020-07-19 23:33:15,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:33:15,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:33:15,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361822958] [2020-07-19 23:33:15,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:33:15,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:15,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:33:15,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:33:15,742 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-19 23:33:19,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:19,237 INFO L93 Difference]: Finished difference Result 902 states and 1625 transitions. [2020-07-19 23:33:19,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 23:33:19,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-07-19 23:33:19,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:19,263 INFO L225 Difference]: With dead ends: 902 [2020-07-19 23:33:19,263 INFO L226 Difference]: Without dead ends: 564 [2020-07-19 23:33:19,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:33:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-19 23:33:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376. [2020-07-19 23:33:19,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-07-19 23:33:19,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-07-19 23:33:19,377 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 49 [2020-07-19 23:33:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:19,378 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-07-19 23:33:19,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:33:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-07-19 23:33:19,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-19 23:33:19,386 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:19,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:33:19,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:33:19,387 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:19,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:19,387 INFO L82 PathProgramCache]: Analyzing trace with hash 783093133, now seen corresponding path program 1 times [2020-07-19 23:33:19,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:19,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716102543] [2020-07-19 23:33:19,388 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:33:19,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716102543] [2020-07-19 23:33:19,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:33:19,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:33:19,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913745326] [2020-07-19 23:33:19,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:33:19,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:19,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:33:19,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:33:19,824 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states. [2020-07-19 23:33:22,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:22,497 INFO L93 Difference]: Finished difference Result 1134 states and 1534 transitions. [2020-07-19 23:33:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:33:22,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-07-19 23:33:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:22,509 INFO L225 Difference]: With dead ends: 1134 [2020-07-19 23:33:22,509 INFO L226 Difference]: Without dead ends: 764 [2020-07-19 23:33:22,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:33:22,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-07-19 23:33:22,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 564. [2020-07-19 23:33:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-07-19 23:33:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 750 transitions. [2020-07-19 23:33:22,584 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 750 transitions. Word has length 132 [2020-07-19 23:33:22,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:22,588 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 750 transitions. [2020-07-19 23:33:22,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:33:22,588 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 750 transitions. [2020-07-19 23:33:22,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-19 23:33:22,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:22,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:33:22,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:33:22,613 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:22,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:22,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1340716769, now seen corresponding path program 1 times [2020-07-19 23:33:22,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:22,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757162621] [2020-07-19 23:33:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:33:22,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757162621] [2020-07-19 23:33:22,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232011056] [2020-07-19 23:33:22,937 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@25b3b9ee No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 23:33:23,104 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@25b3b9ee issued 4 check-sat command(s) [2020-07-19 23:33:23,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:23,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:23,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:33:23,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:23,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2020-07-19 23:33:23,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623817595] [2020-07-19 23:33:23,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:23,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:23,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:23,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:33:23,326 INFO L87 Difference]: Start difference. First operand 564 states and 750 transitions. Second operand 3 states. [2020-07-19 23:33:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:24,368 INFO L93 Difference]: Finished difference Result 1118 states and 1504 transitions. [2020-07-19 23:33:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:24,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-07-19 23:33:24,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:24,380 INFO L225 Difference]: With dead ends: 1118 [2020-07-19 23:33:24,381 INFO L226 Difference]: Without dead ends: 1116 [2020-07-19 23:33:24,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:33:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-07-19 23:33:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 750. [2020-07-19 23:33:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-07-19 23:33:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1059 transitions. [2020-07-19 23:33:24,420 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1059 transitions. Word has length 158 [2020-07-19 23:33:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:24,421 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1059 transitions. [2020-07-19 23:33:24,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1059 transitions. [2020-07-19 23:33:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-19 23:33:24,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:24,426 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, 2, 2, 2, 2, 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] [2020-07-19 23:33:24,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:33:24,642 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:24,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:24,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1341152017, now seen corresponding path program 1 times [2020-07-19 23:33:24,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:24,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655897176] [2020-07-19 23:33:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 23:33:24,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655897176] [2020-07-19 23:33:24,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578485308] [2020-07-19 23:33:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@351a205a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:25,085 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@351a205a issued 4 check-sat command(s) [2020-07-19 23:33:25,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:25,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:33:25,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-19 23:33:25,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:25,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-19 23:33:25,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559479501] [2020-07-19 23:33:25,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:33:25,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:25,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:33:25,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:33:25,174 INFO L87 Difference]: Start difference. First operand 750 states and 1059 transitions. Second operand 5 states. [2020-07-19 23:33:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:26,838 INFO L93 Difference]: Finished difference Result 1890 states and 2740 transitions. [2020-07-19 23:33:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 23:33:26,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-07-19 23:33:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:26,854 INFO L225 Difference]: With dead ends: 1890 [2020-07-19 23:33:26,854 INFO L226 Difference]: Without dead ends: 1146 [2020-07-19 23:33:26,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:33:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2020-07-19 23:33:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1124. [2020-07-19 23:33:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-07-19 23:33:26,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1477 transitions. [2020-07-19 23:33:26,914 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1477 transitions. Word has length 202 [2020-07-19 23:33:26,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:26,914 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1477 transitions. [2020-07-19 23:33:26,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:33:26,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1477 transitions. [2020-07-19 23:33:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-19 23:33:26,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:26,919 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:33:27,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:27,136 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:27,137 INFO L82 PathProgramCache]: Analyzing trace with hash 597460750, now seen corresponding path program 1 times [2020-07-19 23:33:27,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:27,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765979135] [2020-07-19 23:33:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 84 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 23:33:27,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765979135] [2020-07-19 23:33:27,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439245428] [2020-07-19 23:33:27,445 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ca819e9 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 23:33:27,629 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ca819e9 issued 4 check-sat command(s) [2020-07-19 23:33:27,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:27,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:27,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-19 23:33:27,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:27,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-19 23:33:27,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073201418] [2020-07-19 23:33:27,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:27,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:27,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:27,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:27,725 INFO L87 Difference]: Start difference. First operand 1124 states and 1477 transitions. Second operand 3 states. [2020-07-19 23:33:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:28,994 INFO L93 Difference]: Finished difference Result 3160 states and 4242 transitions. [2020-07-19 23:33:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:29,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-19 23:33:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:29,019 INFO L225 Difference]: With dead ends: 3160 [2020-07-19 23:33:29,020 INFO L226 Difference]: Without dead ends: 2042 [2020-07-19 23:33:29,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2020-07-19 23:33:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2042. [2020-07-19 23:33:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2042 states. [2020-07-19 23:33:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 2575 transitions. [2020-07-19 23:33:29,124 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 2575 transitions. Word has length 205 [2020-07-19 23:33:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:29,129 INFO L479 AbstractCegarLoop]: Abstraction has 2042 states and 2575 transitions. [2020-07-19 23:33:29,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 2575 transitions. [2020-07-19 23:33:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-19 23:33:29,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:29,137 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, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-19 23:33:29,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:29,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:29,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:29,355 INFO L82 PathProgramCache]: Analyzing trace with hash 440739686, now seen corresponding path program 1 times [2020-07-19 23:33:29,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:29,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810598998] [2020-07-19 23:33:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 84 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 23:33:29,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810598998] [2020-07-19 23:33:29,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841301638] [2020-07-19 23:33:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2ad8b04a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:30,013 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2ad8b04a issued 4 check-sat command(s) [2020-07-19 23:33:30,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:30,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:30,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-19 23:33:30,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:30,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-19 23:33:30,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253511492] [2020-07-19 23:33:30,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:30,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:30,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:30,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:30,122 INFO L87 Difference]: Start difference. First operand 2042 states and 2575 transitions. Second operand 3 states. [2020-07-19 23:33:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:31,384 INFO L93 Difference]: Finished difference Result 4996 states and 6443 transitions. [2020-07-19 23:33:31,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:31,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-07-19 23:33:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:31,404 INFO L225 Difference]: With dead ends: 4996 [2020-07-19 23:33:31,404 INFO L226 Difference]: Without dead ends: 2960 [2020-07-19 23:33:31,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2020-07-19 23:33:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2778. [2020-07-19 23:33:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2778 states. [2020-07-19 23:33:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 3454 transitions. [2020-07-19 23:33:31,502 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 3454 transitions. Word has length 217 [2020-07-19 23:33:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:31,502 INFO L479 AbstractCegarLoop]: Abstraction has 2778 states and 3454 transitions. [2020-07-19 23:33:31,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 3454 transitions. [2020-07-19 23:33:31,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-07-19 23:33:31,511 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:31,512 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:33:31,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:31,728 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:31,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:31,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1266431367, now seen corresponding path program 1 times [2020-07-19 23:33:31,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:31,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346798715] [2020-07-19 23:33:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-07-19 23:33:32,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346798715] [2020-07-19 23:33:32,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60281443] [2020-07-19 23:33:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4cc857 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 23:33:32,338 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4cc857 issued 4 check-sat command(s) [2020-07-19 23:33:32,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:32,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:32,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-19 23:33:32,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:32,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-19 23:33:32,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722068652] [2020-07-19 23:33:32,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:32,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:32,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:32,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:32,542 INFO L87 Difference]: Start difference. First operand 2778 states and 3454 transitions. Second operand 3 states. [2020-07-19 23:33:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:33,725 INFO L93 Difference]: Finished difference Result 5738 states and 7385 transitions. [2020-07-19 23:33:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:33,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2020-07-19 23:33:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:33,747 INFO L225 Difference]: With dead ends: 5738 [2020-07-19 23:33:33,748 INFO L226 Difference]: Without dead ends: 3330 [2020-07-19 23:33:33,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2020-07-19 23:33:33,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3148. [2020-07-19 23:33:33,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-07-19 23:33:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4028 transitions. [2020-07-19 23:33:33,910 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4028 transitions. Word has length 314 [2020-07-19 23:33:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:33,911 INFO L479 AbstractCegarLoop]: Abstraction has 3148 states and 4028 transitions. [2020-07-19 23:33:33,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4028 transitions. [2020-07-19 23:33:33,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-19 23:33:33,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:33,929 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:33:34,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-19 23:33:34,146 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:34,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:34,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1020978518, now seen corresponding path program 1 times [2020-07-19 23:33:34,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:34,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143491670] [2020-07-19 23:33:34,148 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-19 23:33:34,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143491670] [2020-07-19 23:33:34,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825394310] [2020-07-19 23:33:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51beb621 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:34,873 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51beb621 issued 4 check-sat command(s) [2020-07-19 23:33:34,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:34,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:34,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-19 23:33:34,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:34,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-19 23:33:34,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281067523] [2020-07-19 23:33:34,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:34,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:34,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:34,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:34,956 INFO L87 Difference]: Start difference. First operand 3148 states and 4028 transitions. Second operand 3 states. [2020-07-19 23:33:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:36,197 INFO L93 Difference]: Finished difference Result 6480 states and 8535 transitions. [2020-07-19 23:33:36,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:36,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2020-07-19 23:33:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:36,215 INFO L225 Difference]: With dead ends: 6480 [2020-07-19 23:33:36,216 INFO L226 Difference]: Without dead ends: 3702 [2020-07-19 23:33:36,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-07-19 23:33:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3520. [2020-07-19 23:33:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3520 states. [2020-07-19 23:33:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4631 transitions. [2020-07-19 23:33:36,325 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4631 transitions. Word has length 339 [2020-07-19 23:33:36,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:36,326 INFO L479 AbstractCegarLoop]: Abstraction has 3520 states and 4631 transitions. [2020-07-19 23:33:36,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4631 transitions. [2020-07-19 23:33:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-07-19 23:33:36,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:36,341 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:33:36,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:36,546 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:36,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:36,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2084892774, now seen corresponding path program 1 times [2020-07-19 23:33:36,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:36,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116021662] [2020-07-19 23:33:36,547 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-07-19 23:33:37,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116021662] [2020-07-19 23:33:37,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37955251] [2020-07-19 23:33:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6eb765cd No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 23:33:37,295 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6eb765cd issued 4 check-sat command(s) [2020-07-19 23:33:37,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:37,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:37,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-07-19 23:33:37,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:37,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-19 23:33:37,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893091151] [2020-07-19 23:33:37,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:37,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:37,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:37,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:37,441 INFO L87 Difference]: Start difference. First operand 3520 states and 4631 transitions. Second operand 3 states. [2020-07-19 23:33:38,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:38,578 INFO L93 Difference]: Finished difference Result 4624 states and 6077 transitions. [2020-07-19 23:33:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:38,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-07-19 23:33:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:38,607 INFO L225 Difference]: With dead ends: 4624 [2020-07-19 23:33:38,608 INFO L226 Difference]: Without dead ends: 4622 [2020-07-19 23:33:38,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2020-07-19 23:33:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 3528. [2020-07-19 23:33:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3528 states. [2020-07-19 23:33:38,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4647 transitions. [2020-07-19 23:33:38,746 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4647 transitions. Word has length 353 [2020-07-19 23:33:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:38,748 INFO L479 AbstractCegarLoop]: Abstraction has 3528 states and 4647 transitions. [2020-07-19 23:33:38,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:38,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4647 transitions. [2020-07-19 23:33:38,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-07-19 23:33:38,763 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:33:38,763 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, 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, 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] [2020-07-19 23:33:38,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:38,977 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:33:38,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:33:38,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1401469962, now seen corresponding path program 1 times [2020-07-19 23:33:38,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:33:38,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896676949] [2020-07-19 23:33:38,980 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735244a5 [2020-07-19 23:33:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:33:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-07-19 23:33:39,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896676949] [2020-07-19 23:33:39,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555505274] [2020-07-19 23:33:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d965e84 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:33:39,655 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2d965e84 issued 4 check-sat command(s) [2020-07-19 23:33:39,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:33:39,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:33:39,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:33:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-07-19 23:33:39,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:33:39,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-07-19 23:33:39,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356737199] [2020-07-19 23:33:39,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:33:39,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:33:39,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:33:39,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:39,786 INFO L87 Difference]: Start difference. First operand 3528 states and 4647 transitions. Second operand 3 states. [2020-07-19 23:33:40,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:33:40,756 INFO L93 Difference]: Finished difference Result 7600 states and 10059 transitions. [2020-07-19 23:33:40,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:33:40,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 387 [2020-07-19 23:33:40,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:33:40,757 INFO L225 Difference]: With dead ends: 7600 [2020-07-19 23:33:40,758 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:33:40,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:33:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:33:40,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:33:40,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:33:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:33:40,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 387 [2020-07-19 23:33:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:33:40,783 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:33:40,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:33:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:33:40,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:33:40,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 23:33:41,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:33:42,148 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 30 [2020-07-19 23:33:42,334 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:33:42,334 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,335 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-19 23:33:42,336 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,337 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,337 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,337 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-19 23:33:42,337 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-19 23:33:42,337 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-19 23:33:42,337 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,338 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-19 23:33:42,339 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-19 23:33:42,340 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-19 23:33:42,341 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-19 23:33:42,342 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-19 23:33:42,343 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,343 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,343 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,343 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,343 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-19 23:33:42,343 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,344 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-19 23:33:42,345 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-19 23:33:42,346 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse0 (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)))) (and (or .cse0 (not (<= |old(~a15~0)| 5))) (or .cse0 (not (<= 7 |old(~a15~0)|))) (or (not (<= |old(~a21~0)| 6)) .cse0) (or .cse0 (not (<= 8 |old(~a21~0)|))))) [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-19 23:33:42,347 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,348 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-19 23:33:42,349 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-19 23:33:42,350 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-19 23:33:42,351 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-19 23:33:42,352 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-19 23:33:42,353 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-19 23:33:42,354 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-19 23:33:42,355 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,356 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-19 23:33:42,357 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-19 23:33:42,358 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-19 23:33:42,359 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,360 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-19 23:33:42,361 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-19 23:33:42,362 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-19 23:33:42,363 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-19 23:33:42,364 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-19 23:33:42,364 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-19 23:33:42,364 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:33:42,364 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= ~a15~0 8) (<= 8 ~a15~0)) [2020-07-19 23:33:42,364 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:33:42,364 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:33:42,364 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (<= ~a15~0 8) (= ~a21~0 |old(~a21~0)|) (<= 8 ~a15~0))) [2020-07-19 23:33:42,365 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-19 23:33:42,365 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (or (<= ~a21~0 6) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (<= 8 ~a21~0) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-19 23:33:42,365 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-19 23:33:42,365 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-19 23:33:42,365 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (or (<= ~a21~0 6) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (<= 8 ~a21~0) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-19 23:33:42,365 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-19 23:33:42,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:33:42 BoogieIcfgContainer [2020-07-19 23:33:42,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:33:42,391 INFO L168 Benchmark]: Toolchain (without parser) took 30572.05 ms. Allocated memory was 144.7 MB in the beginning and 669.0 MB in the end (delta: 524.3 MB). Free memory was 98.7 MB in the beginning and 292.1 MB in the end (delta: -193.4 MB). Peak memory consumption was 330.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:33:42,393 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:33:42,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.09 ms. Allocated memory was 144.7 MB in the beginning and 206.0 MB in the end (delta: 61.3 MB). Free memory was 98.5 MB in the beginning and 168.5 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:33:42,395 INFO L168 Benchmark]: Boogie Preprocessor took 165.68 ms. Allocated memory is still 206.0 MB. Free memory was 168.5 MB in the beginning and 162.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:33:42,396 INFO L168 Benchmark]: RCFGBuilder took 1972.83 ms. Allocated memory was 206.0 MB in the beginning and 238.0 MB in the end (delta: 32.0 MB). Free memory was 162.7 MB in the beginning and 157.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:33:42,397 INFO L168 Benchmark]: TraceAbstraction took 27537.74 ms. Allocated memory was 238.0 MB in the beginning and 669.0 MB in the end (delta: 431.0 MB). Free memory was 157.0 MB in the beginning and 292.1 MB in the end (delta: -135.1 MB). Peak memory consumption was 295.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:33:42,401 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 888.09 ms. Allocated memory was 144.7 MB in the beginning and 206.0 MB in the end (delta: 61.3 MB). Free memory was 98.5 MB in the beginning and 168.5 MB in the end (delta: -69.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.68 ms. Allocated memory is still 206.0 MB. Free memory was 168.5 MB in the beginning and 162.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1972.83 ms. Allocated memory was 206.0 MB in the beginning and 238.0 MB in the end (delta: 32.0 MB). Free memory was 162.7 MB in the beginning and 157.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27537.74 ms. Allocated memory was 238.0 MB in the beginning and 669.0 MB in the end (delta: 431.0 MB). Free memory was 157.0 MB in the beginning and 292.1 MB in the end (delta: -135.1 MB). Peak memory consumption was 295.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((a21 <= 6 || 7 <= a15) || a15 <= 5) || !(\old(a12) + 49 <= 0)) || 8 <= a21) || !(\old(a15) <= 8)) || !(8 <= \old(a15)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.0s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1603 SDtfs, 3194 SDslu, 211 SDs, 0 SdLazy, 7121 SolverSat, 1359 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2280 GetRequests, 2205 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3528occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 2416 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 99 PreInvPairs, 147 NumberOfFragments, 202 HoareAnnotationTreeSize, 99 FomulaSimplifications, 14900 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3520 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 4531 NumberOfCodeBlocks, 4531 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 4513 ConstructedInterpolants, 0 QuantifiedInterpolants, 2622829 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3740 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 3309/4056 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...