/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:47:18,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:47:18,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:47:18,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-21 19:47:18,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:47:18,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:47:18,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:47:18,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:47:18,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:47:18,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:47:18,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:47:18,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:47:18,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:47:18,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:47:18,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:47:18,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:47:18,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 19:47:18,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:47:18,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:47:18,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:47:18,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 19:47:18,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:47:18,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:47:18,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:47:18,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:47:18,944 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:47:18,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:47:18,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:47:18,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:47:18,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:47:18,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:47:18,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:47:18,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:47:18,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:47:18,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:47:18,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:47:18,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:47:18,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:47:18,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:47:18,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:47:18,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:47:18,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:47:18,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:47:18,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:47:18,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:47:18,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:47:18,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:47:18,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:47:18,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:47:18,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:47:18,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-21 19:47:19,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:47:19,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:47:19,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:47:19,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:47:19,296 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:47:19,297 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-08-21 19:47:19,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7009ca2ea/0233ed5bb1704f9ca0017291968dbea8/FLAGc4d47940d [2020-08-21 19:47:19,973 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:47:19,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-08-21 19:47:19,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7009ca2ea/0233ed5bb1704f9ca0017291968dbea8/FLAGc4d47940d [2020-08-21 19:47:20,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7009ca2ea/0233ed5bb1704f9ca0017291968dbea8 [2020-08-21 19:47:20,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:47:20,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:47:20,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:47:20,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:47:20,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:47:20,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:20,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3666d953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20, skipping insertion in model container [2020-08-21 19:47:20,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:20,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:47:20,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:47:20,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:47:20,690 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:47:20,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:47:20,961 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:47:20,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20 WrapperNode [2020-08-21 19:47:20,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:47:20,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:47:20,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:47:20,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:47:20,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:20,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:20,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:20,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:21,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:21,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:21,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... [2020-08-21 19:47:21,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:47:21,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:47:21,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:47:21,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:47:21,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:47:21,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:47:21,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:47:21,152 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 19:47:21,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:47:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 19:47:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:47:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:47:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 19:47:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:47:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:47:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:47:22,350 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:47:22,351 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 19:47:22,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:47:22 BoogieIcfgContainer [2020-08-21 19:47:22,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:47:22,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:47:22,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:47:22,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:47:22,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:47:20" (1/3) ... [2020-08-21 19:47:22,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf4355b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:47:22, skipping insertion in model container [2020-08-21 19:47:22,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:47:20" (2/3) ... [2020-08-21 19:47:22,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf4355b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:47:22, skipping insertion in model container [2020-08-21 19:47:22,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:47:22" (3/3) ... [2020-08-21 19:47:22,371 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label11.c [2020-08-21 19:47:22,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:47:22,399 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:47:22,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:47:22,450 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:47:22,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:47:22,451 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:47:22,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:47:22,451 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:47:22,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:47:22,452 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:47:22,452 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:47:22,471 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 19:47:22,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-08-21 19:47:22,483 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:22,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:22,485 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:22,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:22,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1377016033, now seen corresponding path program 1 times [2020-08-21 19:47:22,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:22,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132740162] [2020-08-21 19:47:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:23,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:23,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132740162] [2020-08-21 19:47:23,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:47:23,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 19:47:23,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574803590] [2020-08-21 19:47:23,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:23,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:23,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:23,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:23,140 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 19:47:25,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:25,372 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-21 19:47:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:47:25,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-08-21 19:47:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:25,404 INFO L225 Difference]: With dead ends: 698 [2020-08-21 19:47:25,404 INFO L226 Difference]: Without dead ends: 423 [2020-08-21 19:47:25,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-21 19:47:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-21 19:47:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-21 19:47:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 603 transitions. [2020-08-21 19:47:25,500 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 603 transitions. Word has length 115 [2020-08-21 19:47:25,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:25,503 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 603 transitions. [2020-08-21 19:47:25,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 603 transitions. [2020-08-21 19:47:25,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-21 19:47:25,509 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:25,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:25,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:47:25,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:25,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:25,511 INFO L82 PathProgramCache]: Analyzing trace with hash 508544498, now seen corresponding path program 1 times [2020-08-21 19:47:25,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:25,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788810239] [2020-08-21 19:47:25,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:25,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:25,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:25,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788810239] [2020-08-21 19:47:25,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:25,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 19:47:25,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71102022] [2020-08-21 19:47:25,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:47:25,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:25,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:47:25,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:47:25,811 INFO L87 Difference]: Start difference. First operand 417 states and 603 transitions. Second operand 6 states. [2020-08-21 19:47:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:27,472 INFO L93 Difference]: Finished difference Result 1519 states and 2242 transitions. [2020-08-21 19:47:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:47:27,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-08-21 19:47:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:27,483 INFO L225 Difference]: With dead ends: 1519 [2020-08-21 19:47:27,483 INFO L226 Difference]: Without dead ends: 1108 [2020-08-21 19:47:27,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:47:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-08-21 19:47:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 695. [2020-08-21 19:47:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-21 19:47:27,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 992 transitions. [2020-08-21 19:47:27,552 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 992 transitions. Word has length 132 [2020-08-21 19:47:27,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:27,553 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 992 transitions. [2020-08-21 19:47:27,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:47:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 992 transitions. [2020-08-21 19:47:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-21 19:47:27,561 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:27,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:27,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:47:27,562 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:27,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:27,562 INFO L82 PathProgramCache]: Analyzing trace with hash -469327528, now seen corresponding path program 1 times [2020-08-21 19:47:27,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:27,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637169627] [2020-08-21 19:47:27,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:27,886 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:47:27,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637169627] [2020-08-21 19:47:27,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:27,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 19:47:27,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563493168] [2020-08-21 19:47:27,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:47:27,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:27,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:47:27,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:47:27,889 INFO L87 Difference]: Start difference. First operand 695 states and 992 transitions. Second operand 5 states. [2020-08-21 19:47:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:29,032 INFO L93 Difference]: Finished difference Result 2077 states and 3027 transitions. [2020-08-21 19:47:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 19:47:29,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-08-21 19:47:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:29,041 INFO L225 Difference]: With dead ends: 2077 [2020-08-21 19:47:29,041 INFO L226 Difference]: Without dead ends: 1388 [2020-08-21 19:47:29,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:47:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-08-21 19:47:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1106. [2020-08-21 19:47:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-08-21 19:47:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1479 transitions. [2020-08-21 19:47:29,091 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1479 transitions. Word has length 149 [2020-08-21 19:47:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:29,092 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1479 transitions. [2020-08-21 19:47:29,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:47:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1479 transitions. [2020-08-21 19:47:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-21 19:47:29,098 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:29,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 19:47:29,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:47:29,099 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:29,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:29,099 INFO L82 PathProgramCache]: Analyzing trace with hash -425921661, now seen corresponding path program 1 times [2020-08-21 19:47:29,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:29,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518023596] [2020-08-21 19:47:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:29,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:29,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:47:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 19:47:29,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518023596] [2020-08-21 19:47:29,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:29,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:29,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610967154] [2020-08-21 19:47:29,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:29,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:29,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:29,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:29,289 INFO L87 Difference]: Start difference. First operand 1106 states and 1479 transitions. Second operand 7 states. [2020-08-21 19:47:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:30,652 INFO L93 Difference]: Finished difference Result 2520 states and 3457 transitions. [2020-08-21 19:47:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:47:30,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-08-21 19:47:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:30,666 INFO L225 Difference]: With dead ends: 2520 [2020-08-21 19:47:30,666 INFO L226 Difference]: Without dead ends: 1420 [2020-08-21 19:47:30,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:47:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-08-21 19:47:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1116. [2020-08-21 19:47:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-08-21 19:47:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1466 transitions. [2020-08-21 19:47:30,736 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1466 transitions. Word has length 171 [2020-08-21 19:47:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:30,737 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1466 transitions. [2020-08-21 19:47:30,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1466 transitions. [2020-08-21 19:47:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-08-21 19:47:30,743 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:30,744 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:30,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 19:47:30,744 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:30,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1098584007, now seen corresponding path program 1 times [2020-08-21 19:47:30,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:30,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655389622] [2020-08-21 19:47:30,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 19:47:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 19:47:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:30,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 19:47:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 104 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-08-21 19:47:31,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655389622] [2020-08-21 19:47:31,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:31,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:31,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18115936] [2020-08-21 19:47:31,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:31,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:31,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:31,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:31,029 INFO L87 Difference]: Start difference. First operand 1116 states and 1466 transitions. Second operand 7 states. [2020-08-21 19:47:32,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:32,351 INFO L93 Difference]: Finished difference Result 2971 states and 3993 transitions. [2020-08-21 19:47:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 19:47:32,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-08-21 19:47:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:32,363 INFO L225 Difference]: With dead ends: 2971 [2020-08-21 19:47:32,363 INFO L226 Difference]: Without dead ends: 1861 [2020-08-21 19:47:32,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2020-08-21 19:47:32,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1561. [2020-08-21 19:47:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2020-08-21 19:47:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1997 transitions. [2020-08-21 19:47:32,424 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1997 transitions. Word has length 215 [2020-08-21 19:47:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:32,425 INFO L479 AbstractCegarLoop]: Abstraction has 1561 states and 1997 transitions. [2020-08-21 19:47:32,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:32,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1997 transitions. [2020-08-21 19:47:32,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-08-21 19:47:32,432 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:32,432 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:32,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 19:47:32,433 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:32,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:32,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1678805504, now seen corresponding path program 1 times [2020-08-21 19:47:32,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:32,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962261046] [2020-08-21 19:47:32,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 19:47:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 19:47:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-21 19:47:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 19:47:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 125 proven. 60 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-08-21 19:47:32,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962261046] [2020-08-21 19:47:32,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:32,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:32,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992225312] [2020-08-21 19:47:32,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:32,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:32,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:32,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:32,684 INFO L87 Difference]: Start difference. First operand 1561 states and 1997 transitions. Second operand 7 states. [2020-08-21 19:47:34,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:34,163 INFO L93 Difference]: Finished difference Result 4288 states and 5737 transitions. [2020-08-21 19:47:34,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:47:34,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-08-21 19:47:34,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:34,180 INFO L225 Difference]: With dead ends: 4288 [2020-08-21 19:47:34,180 INFO L226 Difference]: Without dead ends: 2733 [2020-08-21 19:47:34,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:34,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2020-08-21 19:47:34,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2562. [2020-08-21 19:47:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2020-08-21 19:47:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3291 transitions. [2020-08-21 19:47:34,276 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3291 transitions. Word has length 238 [2020-08-21 19:47:34,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:34,277 INFO L479 AbstractCegarLoop]: Abstraction has 2562 states and 3291 transitions. [2020-08-21 19:47:34,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3291 transitions. [2020-08-21 19:47:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-21 19:47:34,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:34,288 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:47:34,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 19:47:34,288 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:34,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash 322431195, now seen corresponding path program 1 times [2020-08-21 19:47:34,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:34,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573707081] [2020-08-21 19:47:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:34,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:34,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 19:47:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:34,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 19:47:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:34,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 19:47:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 130 proven. 26 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-21 19:47:34,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573707081] [2020-08-21 19:47:34,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:34,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:34,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410556469] [2020-08-21 19:47:34,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:34,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:34,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:34,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:34,646 INFO L87 Difference]: Start difference. First operand 2562 states and 3291 transitions. Second operand 7 states. [2020-08-21 19:47:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:36,193 INFO L93 Difference]: Finished difference Result 6093 states and 7898 transitions. [2020-08-21 19:47:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 19:47:36,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-08-21 19:47:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:36,212 INFO L225 Difference]: With dead ends: 6093 [2020-08-21 19:47:36,212 INFO L226 Difference]: Without dead ends: 3537 [2020-08-21 19:47:36,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2020-08-21 19:47:36,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3531. [2020-08-21 19:47:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3531 states. [2020-08-21 19:47:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 4406 transitions. [2020-08-21 19:47:36,332 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 4406 transitions. Word has length 237 [2020-08-21 19:47:36,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:36,332 INFO L479 AbstractCegarLoop]: Abstraction has 3531 states and 4406 transitions. [2020-08-21 19:47:36,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:36,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 4406 transitions. [2020-08-21 19:47:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-21 19:47:36,349 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:36,349 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-08-21 19:47:36,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 19:47:36,350 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:36,350 INFO L82 PathProgramCache]: Analyzing trace with hash 255004558, now seen corresponding path program 1 times [2020-08-21 19:47:36,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:36,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085446074] [2020-08-21 19:47:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-21 19:47:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 19:47:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 19:47:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 19:47:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 172 proven. 82 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-08-21 19:47:36,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085446074] [2020-08-21 19:47:36,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:36,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:47:36,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506864168] [2020-08-21 19:47:36,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:47:36,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:36,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:47:36,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:47:36,652 INFO L87 Difference]: Start difference. First operand 3531 states and 4406 transitions. Second operand 7 states. [2020-08-21 19:47:38,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:38,259 INFO L93 Difference]: Finished difference Result 7481 states and 9433 transitions. [2020-08-21 19:47:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 19:47:38,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-08-21 19:47:38,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:38,278 INFO L225 Difference]: With dead ends: 7481 [2020-08-21 19:47:38,278 INFO L226 Difference]: Without dead ends: 3956 [2020-08-21 19:47:38,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:47:38,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2020-08-21 19:47:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3950. [2020-08-21 19:47:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2020-08-21 19:47:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 4873 transitions. [2020-08-21 19:47:38,401 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 4873 transitions. Word has length 274 [2020-08-21 19:47:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:38,402 INFO L479 AbstractCegarLoop]: Abstraction has 3950 states and 4873 transitions. [2020-08-21 19:47:38,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:47:38,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 4873 transitions. [2020-08-21 19:47:38,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-08-21 19:47:38,421 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:47:38,421 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 19:47:38,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 19:47:38,422 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:47:38,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:47:38,422 INFO L82 PathProgramCache]: Analyzing trace with hash 367016682, now seen corresponding path program 1 times [2020-08-21 19:47:38,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:47:38,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143643978] [2020-08-21 19:47:38,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:47:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:47:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 19:47:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 19:47:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 19:47:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 19:47:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-21 19:47:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:47:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 197 proven. 85 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-08-21 19:47:38,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143643978] [2020-08-21 19:47:38,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:47:38,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 19:47:38,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719739802] [2020-08-21 19:47:38,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:47:38,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:47:38,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:47:38,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:47:38,834 INFO L87 Difference]: Start difference. First operand 3950 states and 4873 transitions. Second operand 9 states. [2020-08-21 19:47:43,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:47:43,150 INFO L93 Difference]: Finished difference Result 10546 states and 13498 transitions. [2020-08-21 19:47:43,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 19:47:43,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 288 [2020-08-21 19:47:43,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:47:43,151 INFO L225 Difference]: With dead ends: 10546 [2020-08-21 19:47:43,151 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:47:43,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-21 19:47:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:47:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:47:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:47:43,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:47:43,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 288 [2020-08-21 19:47:43,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:47:43,178 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:47:43,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:47:43,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:47:43,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:47:43,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 19:47:43,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:47:44,426 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 122 [2020-08-21 19:47:44,631 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 122 [2020-08-21 19:47:45,619 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 61 [2020-08-21 19:47:45,928 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2020-08-21 19:47:46,227 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2020-08-21 19:47:46,232 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:47:46,234 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 19:47:46,234 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:47:46,234 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,235 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 19:47:46,236 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 19:47:46,237 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 19:47:46,238 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,238 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 19:47:46,239 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 19:47:46,240 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,241 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 19:47:46,242 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 19:47:46,243 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 19:47:46,244 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,244 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,244 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,244 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,244 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,245 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 19:47:46,246 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 19:47:46,246 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 19:47:46,246 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 19:47:46,251 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 19:47:46,251 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 19:47:46,252 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 19:47:46,253 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,254 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 19:47:46,255 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,256 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 19:47:46,257 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 19:47:46,258 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 19:47:46,259 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,259 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,260 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,260 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 19:47:46,261 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 19:47:46,262 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 19:47:46,262 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 19:47:46,262 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,262 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,262 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,263 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,264 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,264 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 19:47:46,264 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 19:47:46,265 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 19:47:46,265 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 19:47:46,265 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 19:47:46,265 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 19:47:46,266 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 19:47:46,266 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 19:47:46,266 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 19:47:46,266 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse8 (= ~a21~0 1)) (.cse5 (= 5 ~a16~0)) (.cse6 (not (= 5 |old(~a16~0)|))) (.cse13 (= ~a17~0 1)) (.cse12 (not (= |old(~a17~0)| 1))) (.cse9 (not (<= |old(~a7~0)| 0))) (.cse10 (not (= |old(~a20~0)| 1))) (.cse14 (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4)) (.cse7 (not (= |old(~a21~0)| 1)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7) (or (and .cse1 .cse0 .cse8 .cse3 .cse4 (= ~a16~0 4)) .cse9 .cse10 .cse7 (not (= 4 |old(~a16~0)|))) (or .cse9 (not (= 6 |old(~a16~0)|)) .cse10 (and .cse1 .cse0 .cse8 .cse3 .cse11 .cse4) .cse7) (or .cse12 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse13) .cse6) (or .cse14 (= 14 |old(~a8~0)|)) (or (and .cse1 .cse2 .cse3 .cse11 .cse4 .cse13) .cse12 .cse9 .cse10 .cse7) (or .cse14 .cse7 (not (<= |old(~a20~0)| 0)))))) [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 19:47:46,267 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 19:47:46,268 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,269 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 19:47:46,270 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 19:47:46,271 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 19:47:46,272 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 19:47:46,273 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:47:46,274 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-21 19:47:46,274 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:47:46,274 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:47:46,274 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-21 19:47:46,274 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 19:47:46,274 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 14 ~a8~0)) (and .cse1 (= ~a17~0 1)) (and .cse0 (= ~a16~0 6) .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse2 .cse3 (= ~a16~0 4)) (not (= |old(~a21~0)| 1)))) [2020-08-21 19:47:46,275 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 19:47:46,275 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 19:47:46,275 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 14 ~a8~0)) (and .cse1 (= ~a17~0 1)) (and .cse0 (= ~a16~0 6) .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse2 .cse3 (= ~a16~0 4)) (not (= |old(~a21~0)| 1)))) [2020-08-21 19:47:46,275 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 19:47:46,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:47:46 BoogieIcfgContainer [2020-08-21 19:47:46,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:47:46,316 INFO L168 Benchmark]: Toolchain (without parser) took 26105.37 ms. Allocated memory was 147.8 MB in the beginning and 606.1 MB in the end (delta: 458.2 MB). Free memory was 102.7 MB in the beginning and 277.3 MB in the end (delta: -174.5 MB). Peak memory consumption was 427.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:46,317 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 19:47:46,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.81 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 102.5 MB in the beginning and 173.2 MB in the end (delta: -70.7 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:46,319 INFO L168 Benchmark]: Boogie Preprocessor took 126.28 ms. Allocated memory is still 207.1 MB. Free memory was 173.2 MB in the beginning and 168.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:46,322 INFO L168 Benchmark]: RCFGBuilder took 1272.17 ms. Allocated memory was 207.1 MB in the beginning and 237.0 MB in the end (delta: 29.9 MB). Free memory was 168.4 MB in the beginning and 177.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:46,324 INFO L168 Benchmark]: TraceAbstraction took 23951.05 ms. Allocated memory was 237.0 MB in the beginning and 606.1 MB in the end (delta: 369.1 MB). Free memory was 176.3 MB in the beginning and 277.3 MB in the end (delta: -100.9 MB). Peak memory consumption was 411.5 MB. Max. memory is 7.1 GB. [2020-08-21 19:47:46,332 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.81 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 102.5 MB in the beginning and 173.2 MB in the end (delta: -70.7 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.28 ms. Allocated memory is still 207.1 MB. Free memory was 173.2 MB in the beginning and 168.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.17 ms. Allocated memory was 207.1 MB in the beginning and 237.0 MB in the end (delta: 29.9 MB). Free memory was 168.4 MB in the beginning and 177.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23951.05 ms. Allocated memory was 237.0 MB in the beginning and 606.1 MB in the end (delta: 369.1 MB). Free memory was 176.3 MB in the beginning and 277.3 MB in the end (delta: -100.9 MB). Peak memory consumption was 411.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 503]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((a21 == 1 && 5 == a16) || !(\old(a17) == 1)) || (a21 == 1 && a20 <= 0)) || !(\old(a7) <= 0)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || !(14 == a8)) || (5 == a16 && a17 == 1)) || (((a21 == 1 && a16 == 6) && a7 <= 0) && a20 == 1)) || !(5 == \old(a16))) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a16 == 4)) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.7s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 4517 SDslu, 416 SDs, 0 SdLazy, 9063 SolverSat, 1771 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3950occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1488 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 189 PreInvPairs, 343 NumberOfFragments, 490 HoareAnnotationTreeSize, 189 FomulaSimplifications, 241377 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8571 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1819 NumberOfCodeBlocks, 1819 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1810 ConstructedInterpolants, 0 QuantifiedInterpolants, 866385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 1295/1578 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...