./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f185c5a4952179bf0341452c73ac94d6127cab1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:42:37,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:42:37,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:42:37,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:42:37,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:42:37,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:42:37,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:42:37,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:42:37,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:42:37,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:42:37,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:42:37,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:42:37,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:42:37,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:42:37,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:42:37,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:42:37,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:42:37,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:42:37,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:42:37,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:42:37,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:42:37,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:42:37,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:42:37,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:42:37,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:42:37,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:42:37,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:42:37,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:42:37,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:42:37,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:42:37,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:42:37,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:42:37,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:42:37,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:42:37,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:42:37,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:42:37,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:42:37,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:42:37,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:42:37,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:42:37,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:42:37,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:42:37,148 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:42:37,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:42:37,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:42:37,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:42:37,151 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:42:37,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:42:37,151 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:42:37,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:42:37,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:42:37,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:42:37,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:42:37,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:42:37,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:42:37,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:42:37,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:42:37,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:42:37,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:42:37,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:42:37,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:42:37,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:42:37,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:42:37,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:37,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:42:37,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:42:37,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:42:37,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:42:37,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:42:37,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:42:37,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:42:37,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f185c5a4952179bf0341452c73ac94d6127cab1 [2020-10-20 01:42:37,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:42:37,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:42:37,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:42:37,411 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:42:37,412 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:42:37,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2020-10-20 01:42:37,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66b8972f/d710c9c3bde646b18b0c5eb840262371/FLAG94d4948a8 [2020-10-20 01:42:38,036 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:42:38,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2020-10-20 01:42:38,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66b8972f/d710c9c3bde646b18b0c5eb840262371/FLAG94d4948a8 [2020-10-20 01:42:38,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66b8972f/d710c9c3bde646b18b0c5eb840262371 [2020-10-20 01:42:38,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:42:38,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:42:38,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:38,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:42:38,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:42:38,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50dd8563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38, skipping insertion in model container [2020-10-20 01:42:38,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:38,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:42:38,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:42:38,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:38,823 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:42:38,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:42:38,971 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:42:38,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38 WrapperNode [2020-10-20 01:42:38,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:42:38,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:38,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:42:38,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:42:38,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:42:39,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:42:39,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:42:39,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:42:39,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... [2020-10-20 01:42:39,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:42:39,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:42:39,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:42:39,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:42:39,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:42:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:42:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:42:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:42:39,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:42:40,191 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:42:40,191 INFO L298 CfgBuilder]: Removed 170 assume(true) statements. [2020-10-20 01:42:40,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:40 BoogieIcfgContainer [2020-10-20 01:42:40,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:42:40,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:42:40,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:42:40,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:42:40,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:42:38" (1/3) ... [2020-10-20 01:42:40,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e96adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:40, skipping insertion in model container [2020-10-20 01:42:40,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:42:38" (2/3) ... [2020-10-20 01:42:40,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e96adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:42:40, skipping insertion in model container [2020-10-20 01:42:40,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:40" (3/3) ... [2020-10-20 01:42:40,204 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2020-10-20 01:42:40,216 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:42:40,224 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:42:40,239 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:42:40,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:42:40,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:42:40,281 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:42:40,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:42:40,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:42:40,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:42:40,282 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:42:40,282 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:42:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2020-10-20 01:42:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:42:40,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:40,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:40,312 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:40,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:40,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1511901468, now seen corresponding path program 1 times [2020-10-20 01:42:40,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:40,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374503112] [2020-10-20 01:42:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:40,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374503112] [2020-10-20 01:42:40,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:40,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:40,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147225896] [2020-10-20 01:42:40,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:42:40,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:42:40,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:40,624 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2020-10-20 01:42:40,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:40,692 INFO L93 Difference]: Finished difference Result 242 states and 369 transitions. [2020-10-20 01:42:40,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:42:40,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:42:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:40,706 INFO L225 Difference]: With dead ends: 242 [2020-10-20 01:42:40,706 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 01:42:40,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:42:40,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 01:42:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-20 01:42:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-20 01:42:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2020-10-20 01:42:40,754 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2020-10-20 01:42:40,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:40,768 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2020-10-20 01:42:40,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:42:40,769 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2020-10-20 01:42:40,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:42:40,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:40,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:40,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:42:40,771 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:40,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:40,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1730737437, now seen corresponding path program 1 times [2020-10-20 01:42:40,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:40,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676573003] [2020-10-20 01:42:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:40,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676573003] [2020-10-20 01:42:40,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:40,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:40,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308154990] [2020-10-20 01:42:40,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:40,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:40,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:40,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:40,957 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand 3 states. [2020-10-20 01:42:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:40,975 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-10-20 01:42:40,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:40,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:42:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:40,978 INFO L225 Difference]: With dead ends: 119 [2020-10-20 01:42:40,979 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 01:42:40,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:40,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 01:42:40,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-20 01:42:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-20 01:42:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-10-20 01:42:40,999 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-10-20 01:42:41,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,000 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-10-20 01:42:41,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-10-20 01:42:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:42:41,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,002 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] [2020-10-20 01:42:41,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:42:41,003 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,004 INFO L82 PathProgramCache]: Analyzing trace with hash 70895168, now seen corresponding path program 1 times [2020-10-20 01:42:41,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830391988] [2020-10-20 01:42:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:41,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830391988] [2020-10-20 01:42:41,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:41,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844438147] [2020-10-20 01:42:41,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:41,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:41,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:41,181 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 5 states. [2020-10-20 01:42:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,324 INFO L93 Difference]: Finished difference Result 119 states and 177 transitions. [2020-10-20 01:42:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:41,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 01:42:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,326 INFO L225 Difference]: With dead ends: 119 [2020-10-20 01:42:41,326 INFO L226 Difference]: Without dead ends: 75 [2020-10-20 01:42:41,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:42:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-20 01:42:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-10-20 01:42:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 01:42:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-10-20 01:42:41,350 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 24 [2020-10-20 01:42:41,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,351 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-10-20 01:42:41,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-10-20 01:42:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:42:41,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,354 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] [2020-10-20 01:42:41,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:42:41,354 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2090863582, now seen corresponding path program 1 times [2020-10-20 01:42:41,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510456681] [2020-10-20 01:42:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:41,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510456681] [2020-10-20 01:42:41,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:41,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753195727] [2020-10-20 01:42:41,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:41,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:41,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:41,465 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 3 states. [2020-10-20 01:42:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,512 INFO L93 Difference]: Finished difference Result 157 states and 235 transitions. [2020-10-20 01:42:41,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:41,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-20 01:42:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,514 INFO L225 Difference]: With dead ends: 157 [2020-10-20 01:42:41,515 INFO L226 Difference]: Without dead ends: 93 [2020-10-20 01:42:41,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-20 01:42:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-20 01:42:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 01:42:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2020-10-20 01:42:41,526 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 26 [2020-10-20 01:42:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,527 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2020-10-20 01:42:41,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2020-10-20 01:42:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:42:41,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,529 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] [2020-10-20 01:42:41,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:42:41,529 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1765382007, now seen corresponding path program 1 times [2020-10-20 01:42:41,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553892901] [2020-10-20 01:42:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:41,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553892901] [2020-10-20 01:42:41,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:41,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259061646] [2020-10-20 01:42:41,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:41,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:41,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:41,643 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand 5 states. [2020-10-20 01:42:41,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:41,736 INFO L93 Difference]: Finished difference Result 452 states and 663 transitions. [2020-10-20 01:42:41,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:42:41,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 01:42:41,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:41,739 INFO L225 Difference]: With dead ends: 452 [2020-10-20 01:42:41,740 INFO L226 Difference]: Without dead ends: 368 [2020-10-20 01:42:41,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:41,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-20 01:42:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 164. [2020-10-20 01:42:41,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-20 01:42:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2020-10-20 01:42:41,784 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 27 [2020-10-20 01:42:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:41,784 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2020-10-20 01:42:41,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2020-10-20 01:42:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 01:42:41,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:41,786 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] [2020-10-20 01:42:41,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:42:41,787 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:41,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:41,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1095440129, now seen corresponding path program 1 times [2020-10-20 01:42:41,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:41,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606995870] [2020-10-20 01:42:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:41,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606995870] [2020-10-20 01:42:41,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:41,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:42:41,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114240317] [2020-10-20 01:42:41,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:41,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:41,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:41,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:41,847 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand 5 states. [2020-10-20 01:42:42,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,003 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2020-10-20 01:42:42,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:42:42,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-20 01:42:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,007 INFO L225 Difference]: With dead ends: 605 [2020-10-20 01:42:42,007 INFO L226 Difference]: Without dead ends: 448 [2020-10-20 01:42:42,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:42:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-20 01:42:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 162. [2020-10-20 01:42:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-20 01:42:42,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2020-10-20 01:42:42,029 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 28 [2020-10-20 01:42:42,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,029 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2020-10-20 01:42:42,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2020-10-20 01:42:42,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:42,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,032 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] [2020-10-20 01:42:42,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:42:42,032 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,033 INFO L82 PathProgramCache]: Analyzing trace with hash 494548661, now seen corresponding path program 1 times [2020-10-20 01:42:42,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402912644] [2020-10-20 01:42:42,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:42,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402912644] [2020-10-20 01:42:42,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:42,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021866219] [2020-10-20 01:42:42,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:42,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:42,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:42,084 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand 5 states. [2020-10-20 01:42:42,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,175 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2020-10-20 01:42:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:42:42,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:42:42,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,178 INFO L225 Difference]: With dead ends: 479 [2020-10-20 01:42:42,178 INFO L226 Difference]: Without dead ends: 324 [2020-10-20 01:42:42,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:42:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-20 01:42:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 174. [2020-10-20 01:42:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-20 01:42:42,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2020-10-20 01:42:42,197 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 33 [2020-10-20 01:42:42,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,198 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2020-10-20 01:42:42,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:42,198 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2020-10-20 01:42:42,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:42,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,200 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] [2020-10-20 01:42:42,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:42:42,201 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1195613239, now seen corresponding path program 1 times [2020-10-20 01:42:42,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132472033] [2020-10-20 01:42:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:42,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132472033] [2020-10-20 01:42:42,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:42:42,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317324883] [2020-10-20 01:42:42,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:42,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:42,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:42,260 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand 6 states. [2020-10-20 01:42:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,407 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2020-10-20 01:42:42,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:42:42,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-20 01:42:42,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,410 INFO L225 Difference]: With dead ends: 513 [2020-10-20 01:42:42,411 INFO L226 Difference]: Without dead ends: 346 [2020-10-20 01:42:42,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 01:42:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-20 01:42:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 182. [2020-10-20 01:42:42,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-20 01:42:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2020-10-20 01:42:42,431 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 33 [2020-10-20 01:42:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,432 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2020-10-20 01:42:42,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2020-10-20 01:42:42,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:42:42,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,433 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] [2020-10-20 01:42:42,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:42:42,434 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,434 INFO L82 PathProgramCache]: Analyzing trace with hash 608807225, now seen corresponding path program 1 times [2020-10-20 01:42:42,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118731173] [2020-10-20 01:42:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:42,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118731173] [2020-10-20 01:42:42,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:42:42,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566379208] [2020-10-20 01:42:42,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:42,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:42,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:42,478 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand 3 states. [2020-10-20 01:42:42,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,687 INFO L93 Difference]: Finished difference Result 445 states and 603 transitions. [2020-10-20 01:42:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:42,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:42:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,690 INFO L225 Difference]: With dead ends: 445 [2020-10-20 01:42:42,690 INFO L226 Difference]: Without dead ends: 270 [2020-10-20 01:42:42,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-20 01:42:42,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-10-20 01:42:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-20 01:42:42,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 357 transitions. [2020-10-20 01:42:42,716 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 357 transitions. Word has length 33 [2020-10-20 01:42:42,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,717 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 357 transitions. [2020-10-20 01:42:42,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:42,717 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 357 transitions. [2020-10-20 01:42:42,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:42:42,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,718 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] [2020-10-20 01:42:42,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:42:42,719 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1791527943, now seen corresponding path program 1 times [2020-10-20 01:42:42,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631178926] [2020-10-20 01:42:42,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:42,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631178926] [2020-10-20 01:42:42,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:42,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:42,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936595402] [2020-10-20 01:42:42,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:42,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:42,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:42,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:42,766 INFO L87 Difference]: Start difference. First operand 270 states and 357 transitions. Second operand 3 states. [2020-10-20 01:42:42,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:42,831 INFO L93 Difference]: Finished difference Result 389 states and 516 transitions. [2020-10-20 01:42:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:42,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-20 01:42:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:42,839 INFO L225 Difference]: With dead ends: 389 [2020-10-20 01:42:42,839 INFO L226 Difference]: Without dead ends: 387 [2020-10-20 01:42:42,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:42,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-10-20 01:42:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 316. [2020-10-20 01:42:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-10-20 01:42:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 425 transitions. [2020-10-20 01:42:42,871 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 425 transitions. Word has length 34 [2020-10-20 01:42:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:42,871 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 425 transitions. [2020-10-20 01:42:42,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 425 transitions. [2020-10-20 01:42:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:42,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:42,873 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:42,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:42:42,874 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:42,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1377419427, now seen corresponding path program 1 times [2020-10-20 01:42:42,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:42,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604581416] [2020-10-20 01:42:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:43,028 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:43,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604581416] [2020-10-20 01:42:43,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:43,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:42:43,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579473885] [2020-10-20 01:42:43,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:42:43,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:43,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:42:43,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:42:43,031 INFO L87 Difference]: Start difference. First operand 316 states and 425 transitions. Second operand 6 states. [2020-10-20 01:42:43,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:43,451 INFO L93 Difference]: Finished difference Result 1729 states and 2372 transitions. [2020-10-20 01:42:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:42:43,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-20 01:42:43,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:43,460 INFO L225 Difference]: With dead ends: 1729 [2020-10-20 01:42:43,460 INFO L226 Difference]: Without dead ends: 1508 [2020-10-20 01:42:43,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-20 01:42:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-20 01:42:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 659. [2020-10-20 01:42:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-20 01:42:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 886 transitions. [2020-10-20 01:42:43,539 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 886 transitions. Word has length 58 [2020-10-20 01:42:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:43,539 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 886 transitions. [2020-10-20 01:42:43,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:42:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 886 transitions. [2020-10-20 01:42:43,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:43,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:43,541 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:43,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:42:43,542 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:43,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:43,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1635584865, now seen corresponding path program 1 times [2020-10-20 01:42:43,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:43,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139950668] [2020-10-20 01:42:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:42:43,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139950668] [2020-10-20 01:42:43,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:43,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:42:43,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894527021] [2020-10-20 01:42:43,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:42:43,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:43,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:42:43,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:42:43,617 INFO L87 Difference]: Start difference. First operand 659 states and 886 transitions. Second operand 7 states. [2020-10-20 01:42:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:43,770 INFO L93 Difference]: Finished difference Result 1322 states and 1767 transitions. [2020-10-20 01:42:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:42:43,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-20 01:42:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:43,775 INFO L225 Difference]: With dead ends: 1322 [2020-10-20 01:42:43,776 INFO L226 Difference]: Without dead ends: 758 [2020-10-20 01:42:43,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:42:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-10-20 01:42:43,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 366. [2020-10-20 01:42:43,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-10-20 01:42:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 473 transitions. [2020-10-20 01:42:43,817 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 473 transitions. Word has length 58 [2020-10-20 01:42:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:43,818 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 473 transitions. [2020-10-20 01:42:43,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:42:43,818 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 473 transitions. [2020-10-20 01:42:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-20 01:42:43,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:43,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:43,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:42:43,820 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:43,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:43,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1146166589, now seen corresponding path program 1 times [2020-10-20 01:42:43,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:43,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203706513] [2020-10-20 01:42:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:42:43,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203706513] [2020-10-20 01:42:43,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:43,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:42:43,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705456180] [2020-10-20 01:42:43,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:42:43,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:43,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:42:43,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:42:43,872 INFO L87 Difference]: Start difference. First operand 366 states and 473 transitions. Second operand 5 states. [2020-10-20 01:42:44,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:44,033 INFO L93 Difference]: Finished difference Result 634 states and 825 transitions. [2020-10-20 01:42:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:42:44,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-20 01:42:44,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:44,036 INFO L225 Difference]: With dead ends: 634 [2020-10-20 01:42:44,036 INFO L226 Difference]: Without dead ends: 363 [2020-10-20 01:42:44,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:42:44,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-20 01:42:44,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 359. [2020-10-20 01:42:44,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-10-20 01:42:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 456 transitions. [2020-10-20 01:42:44,075 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 456 transitions. Word has length 58 [2020-10-20 01:42:44,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:44,075 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 456 transitions. [2020-10-20 01:42:44,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:42:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 456 transitions. [2020-10-20 01:42:44,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-20 01:42:44,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:42:44,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:42:44,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:42:44,078 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:42:44,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:42:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash -990133077, now seen corresponding path program 1 times [2020-10-20 01:42:44,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:42:44,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718628040] [2020-10-20 01:42:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:42:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:42:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-20 01:42:44,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718628040] [2020-10-20 01:42:44,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:42:44,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:42:44,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711991132] [2020-10-20 01:42:44,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:42:44,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:42:44,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:42:44,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:44,121 INFO L87 Difference]: Start difference. First operand 359 states and 456 transitions. Second operand 3 states. [2020-10-20 01:42:44,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:42:44,237 INFO L93 Difference]: Finished difference Result 707 states and 897 transitions. [2020-10-20 01:42:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:42:44,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-10-20 01:42:44,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:42:44,238 INFO L225 Difference]: With dead ends: 707 [2020-10-20 01:42:44,238 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:42:44,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:42:44,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:42:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:42:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:42:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:42:44,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-10-20 01:42:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:42:44,242 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:42:44,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:42:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:42:44,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:42:44,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 01:42:44,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:42:44,381 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-20 01:42:44,836 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 167 [2020-10-20 01:42:45,120 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 165 [2020-10-20 01:42:45,540 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 160 [2020-10-20 01:42:45,683 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 113 [2020-10-20 01:42:45,960 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 154 [2020-10-20 01:42:46,110 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 151 [2020-10-20 01:42:46,307 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 107 [2020-10-20 01:42:46,604 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 170 [2020-10-20 01:42:46,776 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 160 [2020-10-20 01:42:47,002 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-10-20 01:42:47,714 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 32 [2020-10-20 01:42:48,412 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 25 [2020-10-20 01:42:48,971 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 26 [2020-10-20 01:42:49,416 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 29 [2020-10-20 01:42:50,098 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 31 [2020-10-20 01:42:50,714 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 31 [2020-10-20 01:42:51,042 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 27 [2020-10-20 01:42:51,448 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 36 [2020-10-20 01:42:52,203 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 30 [2020-10-20 01:42:52,821 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 25 [2020-10-20 01:42:52,826 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:52,827 INFO L270 CegarLoopResult]: At program point L300(lines 285 303) the Hoare annotation is: false [2020-10-20 01:42:52,827 INFO L270 CegarLoopResult]: At program point L300-1(lines 285 303) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (not (= 0 ~systemActive~0))) (.cse2 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse2 .cse3 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse4 (<= 1 ~waterLevel~0) .cse5))) [2020-10-20 01:42:52,827 INFO L270 CegarLoopResult]: At program point L300-2(lines 285 303) the Hoare annotation is: false [2020-10-20 01:42:52,827 INFO L270 CegarLoopResult]: At program point L300-3(lines 285 303) the Hoare annotation is: false [2020-10-20 01:42:52,827 INFO L270 CegarLoopResult]: At program point L300-4(lines 285 303) the Hoare annotation is: false [2020-10-20 01:42:52,827 INFO L270 CegarLoopResult]: At program point L300-5(lines 285 303) the Hoare annotation is: false [2020-10-20 01:42:52,827 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:42:52,827 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:42:52,828 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:42:52,828 INFO L274 CegarLoopResult]: For program point L466(lines 466 483) no Hoare annotation was computed. [2020-10-20 01:42:52,828 INFO L270 CegarLoopResult]: At program point L466-1(lines 1 1000) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-10-20 01:42:52,828 INFO L274 CegarLoopResult]: For program point L466-2(lines 466 483) no Hoare annotation was computed. [2020-10-20 01:42:52,828 INFO L270 CegarLoopResult]: At program point L466-3(lines 1 1000) the Hoare annotation is: false [2020-10-20 01:42:52,828 INFO L274 CegarLoopResult]: For program point L466-4(lines 466 483) no Hoare annotation was computed. [2020-10-20 01:42:52,828 INFO L270 CegarLoopResult]: At program point L466-5(lines 1 1000) the Hoare annotation is: false [2020-10-20 01:42:52,828 INFO L274 CegarLoopResult]: For program point L434(lines 434 441) no Hoare annotation was computed. [2020-10-20 01:42:52,828 INFO L277 CegarLoopResult]: At program point L434-1(lines 434 441) the Hoare annotation is: true [2020-10-20 01:42:52,829 INFO L274 CegarLoopResult]: For program point L170(lines 170 178) no Hoare annotation was computed. [2020-10-20 01:42:52,829 INFO L274 CegarLoopResult]: For program point L170-1(lines 170 178) no Hoare annotation was computed. [2020-10-20 01:42:52,829 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 178) no Hoare annotation was computed. [2020-10-20 01:42:52,830 INFO L274 CegarLoopResult]: For program point L170-3(lines 170 178) no Hoare annotation was computed. [2020-10-20 01:42:52,830 INFO L274 CegarLoopResult]: For program point L170-4(lines 170 178) no Hoare annotation was computed. [2020-10-20 01:42:52,830 INFO L274 CegarLoopResult]: For program point L170-5(lines 170 178) no Hoare annotation was computed. [2020-10-20 01:42:52,830 INFO L270 CegarLoopResult]: At program point L567(lines 562 570) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= ~methaneLevelCritical~0 0) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse0 .cse4 .cse1 .cse2) (and .cse3 .cse4 .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2))) [2020-10-20 01:42:52,830 INFO L270 CegarLoopResult]: At program point L567-1(lines 562 570) the Hoare annotation is: false [2020-10-20 01:42:52,831 INFO L270 CegarLoopResult]: At program point L567-2(lines 562 570) the Hoare annotation is: false [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L997(line 997) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L997-1(line 997) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L997-2(line 997) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L470(lines 470 480) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L470-2(lines 470 480) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L470-4(lines 470 480) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L471(lines 471 477) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L471-2(lines 471 477) no Hoare annotation was computed. [2020-10-20 01:42:52,831 INFO L274 CegarLoopResult]: For program point L471-4(lines 471 477) no Hoare annotation was computed. [2020-10-20 01:42:52,832 INFO L270 CegarLoopResult]: At program point L141(lines 141 147) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= ~methaneLevelCritical~0 0) .cse3 .cse4 .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2))) [2020-10-20 01:42:52,832 INFO L270 CegarLoopResult]: At program point L108(lines 57 109) the Hoare annotation is: false [2020-10-20 01:42:52,833 INFO L270 CegarLoopResult]: At program point L141-1(lines 141 147) the Hoare annotation is: false [2020-10-20 01:42:52,833 INFO L270 CegarLoopResult]: At program point L141-2(lines 141 147) the Hoare annotation is: false [2020-10-20 01:42:52,833 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:52,833 INFO L270 CegarLoopResult]: At program point L406(lines 402 408) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:52,833 INFO L274 CegarLoopResult]: For program point L78(lines 78 84) no Hoare annotation was computed. [2020-10-20 01:42:52,834 INFO L270 CegarLoopResult]: At program point L78-1(lines 78 84) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-10-20 01:42:52,834 INFO L274 CegarLoopResult]: For program point L607(lines 607 613) no Hoare annotation was computed. [2020-10-20 01:42:52,834 INFO L274 CegarLoopResult]: For program point L607-1(lines 607 613) no Hoare annotation was computed. [2020-10-20 01:42:52,834 INFO L274 CegarLoopResult]: For program point L607-2(lines 607 613) no Hoare annotation was computed. [2020-10-20 01:42:52,834 INFO L274 CegarLoopResult]: For program point L607-3(lines 607 613) no Hoare annotation was computed. [2020-10-20 01:42:52,835 INFO L274 CegarLoopResult]: For program point L607-4(lines 607 613) no Hoare annotation was computed. [2020-10-20 01:42:52,835 INFO L274 CegarLoopResult]: For program point L607-5(lines 607 613) no Hoare annotation was computed. [2020-10-20 01:42:52,835 INFO L274 CegarLoopResult]: For program point L542(lines 542 546) no Hoare annotation was computed. [2020-10-20 01:42:52,835 INFO L277 CegarLoopResult]: At program point L443(lines 424 446) the Hoare annotation is: true [2020-10-20 01:42:52,835 INFO L270 CegarLoopResult]: At program point L245(lines 240 248) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~tmp~5 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ~methAndRunningLastTime~0 0) .cse3) (and .cse1 (= |ULTIMATE.start_isPumpRunning_#res| 0) .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2020-10-20 01:42:52,836 INFO L270 CegarLoopResult]: At program point L245-1(lines 240 248) the Hoare annotation is: false [2020-10-20 01:42:52,836 INFO L270 CegarLoopResult]: At program point L245-2(lines 240 248) the Hoare annotation is: false [2020-10-20 01:42:52,836 INFO L270 CegarLoopResult]: At program point L510(lines 1 1000) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:52,836 INFO L274 CegarLoopResult]: For program point L313(lines 313 317) no Hoare annotation was computed. [2020-10-20 01:42:52,836 INFO L274 CegarLoopResult]: For program point L313-2(lines 313 317) no Hoare annotation was computed. [2020-10-20 01:42:52,837 INFO L274 CegarLoopResult]: For program point L313-3(lines 313 317) no Hoare annotation was computed. [2020-10-20 01:42:52,837 INFO L274 CegarLoopResult]: For program point L313-5(lines 313 317) no Hoare annotation was computed. [2020-10-20 01:42:52,837 INFO L274 CegarLoopResult]: For program point L313-6(lines 313 317) no Hoare annotation was computed. [2020-10-20 01:42:52,837 INFO L274 CegarLoopResult]: For program point L313-8(lines 313 317) no Hoare annotation was computed. [2020-10-20 01:42:52,837 INFO L270 CegarLoopResult]: At program point L612(lines 603 616) the Hoare annotation is: false [2020-10-20 01:42:52,838 INFO L270 CegarLoopResult]: At program point L612-1(lines 603 616) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-10-20 01:42:52,838 INFO L270 CegarLoopResult]: At program point L612-2(lines 603 616) the Hoare annotation is: false [2020-10-20 01:42:52,838 INFO L270 CegarLoopResult]: At program point L612-3(lines 603 616) the Hoare annotation is: false [2020-10-20 01:42:52,838 INFO L270 CegarLoopResult]: At program point L612-4(lines 603 616) the Hoare annotation is: false [2020-10-20 01:42:52,838 INFO L270 CegarLoopResult]: At program point L612-5(lines 603 616) the Hoare annotation is: false [2020-10-20 01:42:52,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:42:52,839 INFO L270 CegarLoopResult]: At program point L319(lines 304 322) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (not (= ~pumpRunning~0 0)) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:42:52,839 INFO L270 CegarLoopResult]: At program point L319-1(lines 304 322) the Hoare annotation is: false [2020-10-20 01:42:52,839 INFO L270 CegarLoopResult]: At program point L319-2(lines 304 322) the Hoare annotation is: false [2020-10-20 01:42:52,839 INFO L274 CegarLoopResult]: For program point L88(lines 88 103) no Hoare annotation was computed. [2020-10-20 01:42:52,840 INFO L270 CegarLoopResult]: At program point L518(lines 513 521) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:52,840 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:42:52,840 INFO L274 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-10-20 01:42:52,840 INFO L270 CegarLoopResult]: At program point L455(lines 450 457) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-10-20 01:42:52,840 INFO L274 CegarLoopResult]: For program point L59(lines 58 107) no Hoare annotation was computed. [2020-10-20 01:42:52,841 INFO L274 CegarLoopResult]: For program point L192(lines 192 209) no Hoare annotation was computed. [2020-10-20 01:42:52,841 INFO L274 CegarLoopResult]: For program point L192-1(lines 192 209) no Hoare annotation was computed. [2020-10-20 01:42:52,841 INFO L274 CegarLoopResult]: For program point L192-2(lines 192 209) no Hoare annotation was computed. [2020-10-20 01:42:52,841 INFO L274 CegarLoopResult]: For program point L60(lines 60 64) no Hoare annotation was computed. [2020-10-20 01:42:52,841 INFO L270 CegarLoopResult]: At program point L622(lines 617 625) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ~pumpRunning~0 0)) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:42:52,842 INFO L270 CegarLoopResult]: At program point L622-1(lines 617 625) the Hoare annotation is: false [2020-10-20 01:42:52,842 INFO L270 CegarLoopResult]: At program point L622-2(lines 617 625) the Hoare annotation is: false [2020-10-20 01:42:52,842 INFO L270 CegarLoopResult]: At program point L358-2(lines 358 372) the Hoare annotation is: false [2020-10-20 01:42:52,842 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:42:52,842 INFO L274 CegarLoopResult]: For program point L359(line 359) no Hoare annotation was computed. [2020-10-20 01:42:52,842 INFO L274 CegarLoopResult]: For program point L327(lines 327 333) no Hoare annotation was computed. [2020-10-20 01:42:52,843 INFO L270 CegarLoopResult]: At program point L327-1(lines 327 333) the Hoare annotation is: (let ((.cse2 (<= 1 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 (= ~methAndRunningLastTime~0 0) .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse3 .cse4))) [2020-10-20 01:42:52,843 INFO L274 CegarLoopResult]: For program point L294(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,843 INFO L274 CegarLoopResult]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,843 INFO L274 CegarLoopResult]: For program point L294-3(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,843 INFO L274 CegarLoopResult]: For program point L294-5(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,844 INFO L274 CegarLoopResult]: For program point L96(lines 96 102) no Hoare annotation was computed. [2020-10-20 01:42:52,844 INFO L274 CegarLoopResult]: For program point L294-6(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,844 INFO L270 CegarLoopResult]: At program point L96-1(lines 134 140) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~5 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not .cse1) .cse2 .cse3 .cse4 .cse5) (and .cse3 .cse0 .cse4 .cse6 .cse5 (= ~methAndRunningLastTime~0 0)) (and .cse1 .cse2 .cse3 .cse0 .cse4 .cse5) (and (= ~methaneLevelCritical~0 0) .cse1 .cse3 .cse0 .cse6 .cse4 .cse5))) [2020-10-20 01:42:52,844 INFO L274 CegarLoopResult]: For program point L294-8(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,844 INFO L274 CegarLoopResult]: For program point L294-9(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,845 INFO L274 CegarLoopResult]: For program point L294-11(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,845 INFO L274 CegarLoopResult]: For program point L294-12(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,845 INFO L274 CegarLoopResult]: For program point L294-14(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,845 INFO L274 CegarLoopResult]: For program point L294-15(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,845 INFO L274 CegarLoopResult]: For program point L294-17(lines 294 298) no Hoare annotation was computed. [2020-10-20 01:42:52,845 INFO L274 CegarLoopResult]: For program point L196(lines 196 204) no Hoare annotation was computed. [2020-10-20 01:42:52,846 INFO L274 CegarLoopResult]: For program point L196-1(lines 196 204) no Hoare annotation was computed. [2020-10-20 01:42:52,846 INFO L274 CegarLoopResult]: For program point L196-2(lines 196 204) no Hoare annotation was computed. [2020-10-20 01:42:52,846 INFO L274 CegarLoopResult]: For program point L362(lines 362 366) no Hoare annotation was computed. [2020-10-20 01:42:52,846 INFO L274 CegarLoopResult]: For program point L362-1(lines 134 140) no Hoare annotation was computed. [2020-10-20 01:42:52,846 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:42:52,847 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:42:52,847 INFO L274 CegarLoopResult]: For program point L166(lines 166 183) no Hoare annotation was computed. [2020-10-20 01:42:52,847 INFO L274 CegarLoopResult]: For program point L166-1(lines 166 183) no Hoare annotation was computed. [2020-10-20 01:42:52,847 INFO L274 CegarLoopResult]: For program point L166-2(lines 166 183) no Hoare annotation was computed. [2020-10-20 01:42:52,847 INFO L274 CegarLoopResult]: For program point L166-3(lines 166 183) no Hoare annotation was computed. [2020-10-20 01:42:52,847 INFO L274 CegarLoopResult]: For program point L166-4(lines 166 183) no Hoare annotation was computed. [2020-10-20 01:42:52,848 INFO L274 CegarLoopResult]: For program point L166-5(lines 166 183) no Hoare annotation was computed. [2020-10-20 01:42:52,848 INFO L274 CegarLoopResult]: For program point L530(lines 530 534) no Hoare annotation was computed. [2020-10-20 01:42:52,848 INFO L274 CegarLoopResult]: For program point L530-3(lines 530 534) no Hoare annotation was computed. [2020-10-20 01:42:52,848 INFO L274 CegarLoopResult]: For program point L530-6(lines 530 534) no Hoare annotation was computed. [2020-10-20 01:42:52,848 INFO L270 CegarLoopResult]: At program point L134(lines 133 152) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4 (= ~methAndRunningLastTime~0 0)) (and .cse5 (<= 2 ~waterLevel~0) .cse0 .cse1 .cse3 .cse4) (and (not .cse1) (not .cse5) .cse0 .cse3 .cse2 .cse4))) [2020-10-20 01:42:52,849 INFO L274 CegarLoopResult]: For program point L134-1(lines 134 140) no Hoare annotation was computed. [2020-10-20 01:42:52,849 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-10-20 01:42:52,849 INFO L270 CegarLoopResult]: At program point L134-2(lines 133 152) the Hoare annotation is: false [2020-10-20 01:42:52,849 INFO L270 CegarLoopResult]: At program point L68-1(lines 68 74) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-10-20 01:42:52,849 INFO L270 CegarLoopResult]: At program point L134-3(lines 133 152) the Hoare annotation is: false [2020-10-20 01:42:52,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:42:52 BoogieIcfgContainer [2020-10-20 01:42:52,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:42:52,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:42:52,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:42:52,884 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:42:52,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:42:40" (3/4) ... [2020-10-20 01:42:52,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:42:52,910 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:42:52,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:42:52,912 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:42:52,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:42:52,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:42:52,915 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:42:52,916 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:42:52,948 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-10-20 01:42:52,949 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-10-20 01:42:52,949 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-10-20 01:42:52,949 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:52,950 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:52,950 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:52,951 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:52,951 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:42:52,952 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:52,952 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:52,953 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-10-20 01:42:52,954 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-10-20 01:42:52,955 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:42:52,955 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((tmp == 1 && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:42:52,955 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-10-20 01:42:52,956 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((((tmp___0 == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && pumpRunning == 0) && !(tmp == 0)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-20 01:42:53,029 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:42:53,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:42:53,031 INFO L168 Benchmark]: Toolchain (without parser) took 14712.39 ms. Allocated memory was 37.2 MB in the beginning and 149.9 MB in the end (delta: 112.7 MB). Free memory was 20.0 MB in the beginning and 71.4 MB in the end (delta: -51.3 MB). Peak memory consumption was 61.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,031 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 34.6 MB. Free memory was 13.1 MB in the beginning and 13.0 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.26 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 19.1 MB in the beginning and 15.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.22 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 25.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,033 INFO L168 Benchmark]: Boogie Preprocessor took 56.36 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 22.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,033 INFO L168 Benchmark]: RCFGBuilder took 1065.97 ms. Allocated memory was 46.1 MB in the beginning and 49.8 MB in the end (delta: 3.7 MB). Free memory was 21.8 MB in the beginning and 14.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,034 INFO L168 Benchmark]: TraceAbstraction took 12688.00 ms. Allocated memory was 49.8 MB in the beginning and 149.9 MB in the end (delta: 100.1 MB). Free memory was 13.5 MB in the beginning and 85.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 100.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,034 INFO L168 Benchmark]: Witness Printer took 145.42 ms. Allocated memory is still 149.9 MB. Free memory was 85.0 MB in the beginning and 71.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:42:53,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 34.6 MB. Free memory was 13.1 MB in the beginning and 13.0 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 647.26 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 19.1 MB in the beginning and 15.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 92.22 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 25.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 56.36 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 22.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1065.97 ms. Allocated memory was 46.1 MB in the beginning and 49.8 MB in the end (delta: 3.7 MB). Free memory was 21.8 MB in the beginning and 14.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 12688.00 ms. Allocated memory was 49.8 MB in the beginning and 149.9 MB in the end (delta: 100.1 MB). Free memory was 13.5 MB in the beginning and 85.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 100.4 MB. Max. memory is 14.3 GB. * Witness Printer took 145.42 ms. Allocated memory is still 149.9 MB. Free memory was 85.0 MB in the beginning and 71.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((tmp == 1 && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((((tmp___0 == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && pumpRunning == 0) && !(tmp == 0)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1407 SDtfs, 2175 SDslu, 2127 SDs, 0 SdLazy, 268 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 2126 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 188 NumberOfFragments, 829 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1644276 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 45 FomulaSimplificationsInter, 131331 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 35144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 82/82 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...