./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label42.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ced3eb982b16bda97708eba7d7a33ef6d709871 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 09:53:12,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:53:12,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:53:12,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:53:12,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:53:12,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:53:12,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:53:12,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:53:12,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:53:12,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:53:12,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:53:12,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:53:12,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:53:12,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:53:12,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:53:12,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:53:12,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:53:12,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:53:12,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:53:12,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:53:12,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:53:12,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:53:12,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:53:12,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:53:12,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:53:12,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:53:12,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:53:12,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:53:12,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:53:12,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:53:12,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:53:12,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:53:12,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:53:12,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:53:12,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:53:12,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:53:12,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:53:12,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:53:12,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:53:12,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:53:12,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:53:12,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:53:12,170 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:53:12,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:53:12,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:53:12,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:53:12,171 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:53:12,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:53:12,172 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:53:12,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:53:12,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:53:12,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:53:12,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:53:12,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:53:12,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:53:12,173 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:53:12,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:53:12,173 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:53:12,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:53:12,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:53:12,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:53:12,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:53:12,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:53:12,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:53:12,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:53:12,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:53:12,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:53:12,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:53:12,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:53:12,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:53:12,175 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer 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(__VERIFIER_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 -> 1ced3eb982b16bda97708eba7d7a33ef6d709871 [2019-11-20 09:53:12,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:53:12,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:53:12,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:53:12,371 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:53:12,371 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:53:12,372 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label42.c [2019-11-20 09:53:12,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/data/079b13325/45151c75081a475bbebd861ce6e02da5/FLAG30833a83f [2019-11-20 09:53:12,950 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:53:12,951 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/sv-benchmarks/c/eca-rers2012/Problem01_label42.c [2019-11-20 09:53:12,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/data/079b13325/45151c75081a475bbebd861ce6e02da5/FLAG30833a83f [2019-11-20 09:53:13,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/data/079b13325/45151c75081a475bbebd861ce6e02da5 [2019-11-20 09:53:13,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:53:13,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:53:13,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:53:13,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:53:13,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:53:13,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525ee995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13, skipping insertion in model container [2019-11-20 09:53:13,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,265 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:53:13,305 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:53:13,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:53:13,729 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:53:13,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:53:13,834 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:53:13,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13 WrapperNode [2019-11-20 09:53:13,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:53:13,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:53:13,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:53:13,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:53:13,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:53:13,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:53:13,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:53:13,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:53:13,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:13,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:14,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:14,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:14,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... [2019-11-20 09:53:14,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:53:14,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:53:14,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:53:14,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:53:14,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/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 [2019-11-20 09:53:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:53:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:53:15,178 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:53:15,179 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 09:53:15,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:15 BoogieIcfgContainer [2019-11-20 09:53:15,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:53:15,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:53:15,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:53:15,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:53:15,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:53:13" (1/3) ... [2019-11-20 09:53:15,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae81aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:53:15, skipping insertion in model container [2019-11-20 09:53:15,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:53:13" (2/3) ... [2019-11-20 09:53:15,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae81aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:53:15, skipping insertion in model container [2019-11-20 09:53:15,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:15" (3/3) ... [2019-11-20 09:53:15,189 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2019-11-20 09:53:15,198 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:53:15,205 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:53:15,216 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:53:15,244 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:53:15,245 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:53:15,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:53:15,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:53:15,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:53:15,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:53:15,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:53:15,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:53:15,264 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-20 09:53:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-11-20 09:53:15,275 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:15,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:15,277 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:15,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1613704130, now seen corresponding path program 1 times [2019-11-20 09:53:15,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:15,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781084870] [2019-11-20 09:53:15,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:15,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:53:15,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781084870] [2019-11-20 09:53:15,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:15,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:53:15,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017205919] [2019-11-20 09:53:15,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:53:15,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:15,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:53:15,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:53:15,691 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2019-11-20 09:53:16,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:16,605 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2019-11-20 09:53:16,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:53:16,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-11-20 09:53:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:16,620 INFO L225 Difference]: With dead ends: 528 [2019-11-20 09:53:16,620 INFO L226 Difference]: Without dead ends: 266 [2019-11-20 09:53:16,625 INFO L630 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 [2019-11-20 09:53:16,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-20 09:53:16,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-20 09:53:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-20 09:53:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2019-11-20 09:53:16,681 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 115 [2019-11-20 09:53:16,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:16,682 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2019-11-20 09:53:16,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:53:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2019-11-20 09:53:16,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-20 09:53:16,688 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:16,688 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:16,689 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:16,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:16,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1626358534, now seen corresponding path program 1 times [2019-11-20 09:53:16,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:16,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139510672] [2019-11-20 09:53:16,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 09:53:16,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139510672] [2019-11-20 09:53:16,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:16,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:53:16,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672997205] [2019-11-20 09:53:16,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 09:53:16,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:16,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 09:53:16,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:16,928 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand 4 states. [2019-11-20 09:53:17,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:17,753 INFO L93 Difference]: Finished difference Result 1054 states and 1488 transitions. [2019-11-20 09:53:17,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 09:53:17,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-11-20 09:53:17,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:17,763 INFO L225 Difference]: With dead ends: 1054 [2019-11-20 09:53:17,763 INFO L226 Difference]: Without dead ends: 790 [2019-11-20 09:53:17,766 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-20 09:53:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 528. [2019-11-20 09:53:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-11-20 09:53:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2019-11-20 09:53:17,808 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 119 [2019-11-20 09:53:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:17,809 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2019-11-20 09:53:17,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 09:53:17,809 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2019-11-20 09:53:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-11-20 09:53:17,816 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:17,820 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:17,820 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:17,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:17,820 INFO L82 PathProgramCache]: Analyzing trace with hash -951101936, now seen corresponding path program 1 times [2019-11-20 09:53:17,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:17,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109751649] [2019-11-20 09:53:17,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 09:53:17,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109751649] [2019-11-20 09:53:17,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:17,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:53:17,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960552076] [2019-11-20 09:53:17,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:53:17,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:17,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:53:17,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:53:17,968 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 3 states. [2019-11-20 09:53:18,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:18,469 INFO L93 Difference]: Finished difference Result 1316 states and 1785 transitions. [2019-11-20 09:53:18,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:53:18,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-11-20 09:53:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:18,474 INFO L225 Difference]: With dead ends: 1316 [2019-11-20 09:53:18,475 INFO L226 Difference]: Without dead ends: 790 [2019-11-20 09:53:18,481 INFO L630 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 [2019-11-20 09:53:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-20 09:53:18,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2019-11-20 09:53:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-11-20 09:53:18,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 888 transitions. [2019-11-20 09:53:18,525 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 888 transitions. Word has length 149 [2019-11-20 09:53:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:18,526 INFO L462 AbstractCegarLoop]: Abstraction has 659 states and 888 transitions. [2019-11-20 09:53:18,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:53:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 888 transitions. [2019-11-20 09:53:18,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-20 09:53:18,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:18,541 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:18,541 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:18,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:18,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1921921286, now seen corresponding path program 1 times [2019-11-20 09:53:18,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:18,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204856070] [2019-11-20 09:53:18,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-20 09:53:18,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204856070] [2019-11-20 09:53:18,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:18,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:53:18,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488968677] [2019-11-20 09:53:18,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 09:53:18,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:18,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 09:53:18,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:18,736 INFO L87 Difference]: Start difference. First operand 659 states and 888 transitions. Second operand 4 states. [2019-11-20 09:53:19,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:19,426 INFO L93 Difference]: Finished difference Result 1449 states and 1931 transitions. [2019-11-20 09:53:19,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 09:53:19,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2019-11-20 09:53:19,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:19,431 INFO L225 Difference]: With dead ends: 1449 [2019-11-20 09:53:19,431 INFO L226 Difference]: Without dead ends: 792 [2019-11-20 09:53:19,432 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:53:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-11-20 09:53:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 790. [2019-11-20 09:53:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-20 09:53:19,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1025 transitions. [2019-11-20 09:53:19,452 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1025 transitions. Word has length 153 [2019-11-20 09:53:19,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:19,452 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1025 transitions. [2019-11-20 09:53:19,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 09:53:19,453 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1025 transitions. [2019-11-20 09:53:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-20 09:53:19,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:19,456 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:19,456 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:19,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:19,457 INFO L82 PathProgramCache]: Analyzing trace with hash -680769074, now seen corresponding path program 1 times [2019-11-20 09:53:19,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:19,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511745488] [2019-11-20 09:53:19,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-20 09:53:19,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511745488] [2019-11-20 09:53:19,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:19,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:53:19,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290174435] [2019-11-20 09:53:19,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:53:19,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:19,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:53:19,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:53:19,529 INFO L87 Difference]: Start difference. First operand 790 states and 1025 transitions. Second operand 3 states. [2019-11-20 09:53:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:20,033 INFO L93 Difference]: Finished difference Result 1709 states and 2245 transitions. [2019-11-20 09:53:20,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:53:20,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-11-20 09:53:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:20,039 INFO L225 Difference]: With dead ends: 1709 [2019-11-20 09:53:20,040 INFO L226 Difference]: Without dead ends: 1052 [2019-11-20 09:53:20,043 INFO L630 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 [2019-11-20 09:53:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2019-11-20 09:53:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2019-11-20 09:53:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-11-20 09:53:20,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1323 transitions. [2019-11-20 09:53:20,076 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1323 transitions. Word has length 157 [2019-11-20 09:53:20,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:20,076 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1323 transitions. [2019-11-20 09:53:20,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:53:20,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1323 transitions. [2019-11-20 09:53:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-20 09:53:20,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:20,080 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:20,081 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:20,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:20,081 INFO L82 PathProgramCache]: Analyzing trace with hash 556803504, now seen corresponding path program 1 times [2019-11-20 09:53:20,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:20,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658116410] [2019-11-20 09:53:20,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:20,146 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-20 09:53:20,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658116410] [2019-11-20 09:53:20,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:20,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 09:53:20,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546060996] [2019-11-20 09:53:20,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 09:53:20,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:20,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 09:53:20,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:20,149 INFO L87 Difference]: Start difference. First operand 1052 states and 1323 transitions. Second operand 4 states. [2019-11-20 09:53:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:20,886 INFO L93 Difference]: Finished difference Result 3150 states and 3974 transitions. [2019-11-20 09:53:20,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 09:53:20,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2019-11-20 09:53:20,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:20,897 INFO L225 Difference]: With dead ends: 3150 [2019-11-20 09:53:20,897 INFO L226 Difference]: Without dead ends: 2231 [2019-11-20 09:53:20,899 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:20,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-11-20 09:53:20,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1576. [2019-11-20 09:53:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-11-20 09:53:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1943 transitions. [2019-11-20 09:53:20,939 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1943 transitions. Word has length 166 [2019-11-20 09:53:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:20,939 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1943 transitions. [2019-11-20 09:53:20,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 09:53:20,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1943 transitions. [2019-11-20 09:53:20,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-20 09:53:20,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:20,945 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:20,945 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:20,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:20,945 INFO L82 PathProgramCache]: Analyzing trace with hash 390134956, now seen corresponding path program 1 times [2019-11-20 09:53:20,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:20,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189967501] [2019-11-20 09:53:20,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-11-20 09:53:21,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189967501] [2019-11-20 09:53:21,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:21,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 09:53:21,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894918611] [2019-11-20 09:53:21,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:53:21,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:21,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:53:21,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:53:21,057 INFO L87 Difference]: Start difference. First operand 1576 states and 1943 transitions. Second operand 5 states. [2019-11-20 09:53:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:22,138 INFO L93 Difference]: Finished difference Result 3543 states and 4355 transitions. [2019-11-20 09:53:22,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:53:22,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2019-11-20 09:53:22,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:22,150 INFO L225 Difference]: With dead ends: 3543 [2019-11-20 09:53:22,150 INFO L226 Difference]: Without dead ends: 2100 [2019-11-20 09:53:22,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:53:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-11-20 09:53:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2019-11-20 09:53:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-11-20 09:53:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2217 transitions. [2019-11-20 09:53:22,199 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2217 transitions. Word has length 190 [2019-11-20 09:53:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:22,200 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2217 transitions. [2019-11-20 09:53:22,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:53:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2217 transitions. [2019-11-20 09:53:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-11-20 09:53:22,205 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:22,206 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:22,206 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:22,207 INFO L82 PathProgramCache]: Analyzing trace with hash 128921415, now seen corresponding path program 1 times [2019-11-20 09:53:22,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:22,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625381157] [2019-11-20 09:53:22,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-11-20 09:53:22,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625381157] [2019-11-20 09:53:22,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:53:22,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:53:22,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517485687] [2019-11-20 09:53:22,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:53:22,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:22,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:53:22,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:53:22,278 INFO L87 Difference]: Start difference. First operand 1838 states and 2217 transitions. Second operand 3 states. [2019-11-20 09:53:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:22,782 INFO L93 Difference]: Finished difference Result 4067 states and 4903 transitions. [2019-11-20 09:53:22,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:53:22,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-11-20 09:53:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:22,792 INFO L225 Difference]: With dead ends: 4067 [2019-11-20 09:53:22,792 INFO L226 Difference]: Without dead ends: 1969 [2019-11-20 09:53:22,795 INFO L630 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 [2019-11-20 09:53:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2019-11-20 09:53:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2019-11-20 09:53:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-11-20 09:53:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1877 transitions. [2019-11-20 09:53:22,831 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1877 transitions. Word has length 193 [2019-11-20 09:53:22,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:22,831 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1877 transitions. [2019-11-20 09:53:22,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:53:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1877 transitions. [2019-11-20 09:53:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-20 09:53:22,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:53:22,837 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:53:22,838 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:53:22,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:53:22,838 INFO L82 PathProgramCache]: Analyzing trace with hash 2022598972, now seen corresponding path program 1 times [2019-11-20 09:53:22,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:53:22,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332124791] [2019-11-20 09:53:22,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:53:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-11-20 09:53:23,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332124791] [2019-11-20 09:53:23,037 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469485359] [2019-11-20 09:53:23,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 09:53:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:53:23,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 09:53:23,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:53:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-11-20 09:53:23,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 09:53:23,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2019-11-20 09:53:23,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258241219] [2019-11-20 09:53:23,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:53:23,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:53:23,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:53:23,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:23,262 INFO L87 Difference]: Start difference. First operand 1707 states and 1877 transitions. Second operand 3 states. [2019-11-20 09:53:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:53:23,772 INFO L93 Difference]: Finished difference Result 3672 states and 4041 transitions. [2019-11-20 09:53:23,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:53:23,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2019-11-20 09:53:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:53:23,775 INFO L225 Difference]: With dead ends: 3672 [2019-11-20 09:53:23,776 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 09:53:23,779 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:53:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 09:53:23,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 09:53:23,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 09:53:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 09:53:23,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2019-11-20 09:53:23,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:53:23,780 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:53:23,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:53:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:53:23,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:53:23,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 09:53:23,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 09:53:24,321 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-11-20 09:53:24,582 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,585 INFO L444 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-20 09:53:24,586 INFO L444 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-20 09:53:24,587 INFO L444 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-20 09:53:24,588 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-20 09:53:24,589 INFO L444 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-20 09:53:24,589 INFO L444 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,589 INFO L444 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,589 INFO L444 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,593 INFO L444 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,593 INFO L444 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,593 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-20 09:53:24,594 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-20 09:53:24,594 INFO L444 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-20 09:53:24,594 INFO L444 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-20 09:53:24,594 INFO L444 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-20 09:53:24,594 INFO L444 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-20 09:53:24,594 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-20 09:53:24,595 INFO L444 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-20 09:53:24,595 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-20 09:53:24,596 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (= ~a16~0 6))) (.cse4 (<= ~a17~0 0)) (.cse0 (= 1 ~a7~0)) (.cse7 (= ~a16~0 5)) (.cse6 (not (= ~a8~0 13))) (.cse5 (= ~a21~0 1)) (.cse3 (= ~a20~0 1)) (.cse2 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3) (and .cse1 .cse4 .cse5) (and .cse6 .cse4 .cse5) (and .cse4 .cse5 .cse3) (and .cse5 .cse3 .cse7) (and .cse6 .cse0 .cse5 .cse7) (and (and .cse6 .cse5) .cse2) (and (and .cse5 .cse3) .cse2))) [2019-11-20 09:53:24,596 INFO L444 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,598 INFO L444 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,598 INFO L444 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,598 INFO L444 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,598 INFO L444 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-20 09:53:24,599 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-20 09:53:24,600 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-20 09:53:24,601 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-20 09:53:24,602 INFO L444 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-20 09:53:24,603 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 09:53:24,604 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-20 09:53:24,605 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-20 09:53:24,605 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-20 09:53:24,605 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-20 09:53:24,605 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-20 09:53:24,606 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-20 09:53:24,606 INFO L444 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,606 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (not (= ~a16~0 6))) (.cse4 (<= ~a17~0 0)) (.cse0 (= 1 ~a7~0)) (.cse7 (= ~a16~0 5)) (.cse6 (not (= ~a8~0 13))) (.cse5 (= ~a21~0 1)) (.cse3 (= ~a20~0 1)) (.cse2 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3) (and .cse1 .cse4 .cse5) (and .cse6 .cse4 .cse5) (and .cse4 .cse5 .cse3) (and .cse5 .cse3 .cse7) (and .cse6 .cse0 .cse5 .cse7) (and (and .cse6 .cse5) .cse2) (and (and .cse5 .cse3) .cse2))) [2019-11-20 09:53:24,606 INFO L444 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,606 INFO L444 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-20 09:53:24,607 INFO L444 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-20 09:53:24,608 INFO L444 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-20 09:53:24,611 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-20 09:53:24,611 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-20 09:53:24,611 INFO L444 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,611 INFO L444 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,611 INFO L444 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,611 INFO L444 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-20 09:53:24,612 INFO L444 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-20 09:53:24,613 INFO L444 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,614 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-20 09:53:24,615 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-20 09:53:24,615 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 09:53:24,615 INFO L444 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-20 09:53:24,615 INFO L444 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-20 09:53:24,616 INFO L444 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-20 09:53:24,616 INFO L444 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-20 09:53:24,617 INFO L444 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,618 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-20 09:53:24,619 INFO L444 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-20 09:53:24,620 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,621 INFO L444 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-20 09:53:24,622 INFO L444 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-20 09:53:24,623 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-20 09:53:24,623 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-20 09:53:24,623 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-20 09:53:24,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:53:24 BoogieIcfgContainer [2019-11-20 09:53:24,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:53:24,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:53:24,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:53:24,653 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:53:24,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:53:15" (3/4) ... [2019-11-20 09:53:24,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:53:24,683 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 09:53:24,684 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 09:53:24,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b3dec56f-c708-43d5-99cd-a7dd8495bee3/bin/uautomizer/witness.graphml [2019-11-20 09:53:24,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:53:24,877 INFO L168 Benchmark]: Toolchain (without parser) took 11638.82 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 434.6 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -303.2 MB). Peak memory consumption was 131.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:24,878 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:53:24,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:24,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:24,879 INFO L168 Benchmark]: Boogie Preprocessor took 100.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:53:24,879 INFO L168 Benchmark]: RCFGBuilder took 1140.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.7 MB in the end (delta: 114.4 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:24,880 INFO L168 Benchmark]: TraceAbstraction took 9470.62 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 289.4 MB). Free memory was 993.7 MB in the beginning and 1.3 GB in the end (delta: -271.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:24,880 INFO L168 Benchmark]: Witness Printer took 223.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:53:24,882 INFO L335 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 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 589.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 100.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1140.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.7 MB in the end (delta: 114.4 MB). Peak memory consumption was 114.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9470.62 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 289.4 MB). Free memory was 993.7 MB in the beginning and 1.3 GB in the end (delta: -271.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Witness Printer took 223.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((1 == a7 && !(a16 == 6)) && a17 == 1) || (1 == a7 && a20 == 1)) || ((!(a16 == 6) && a17 <= 0) && a21 == 1)) || ((!(a8 == 13) && a17 <= 0) && a21 == 1)) || ((a17 <= 0 && a21 == 1) && a20 == 1)) || ((a21 == 1 && a20 == 1) && a16 == 5)) || (((!(a8 == 13) && 1 == a7) && a21 == 1) && a16 == 5)) || ((!(a8 == 13) && a21 == 1) && a17 == 1)) || ((a21 == 1 && a20 == 1) && a17 == 1) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((1 == a7 && !(a16 == 6)) && a17 == 1) || (1 == a7 && a20 == 1)) || ((!(a16 == 6) && a17 <= 0) && a21 == 1)) || ((!(a8 == 13) && a17 <= 0) && a21 == 1)) || ((a17 <= 0 && a21 == 1) && a20 == 1)) || ((a21 == 1 && a20 == 1) && a16 == 5)) || (((!(a8 == 13) && 1 == a7) && a21 == 1) && a16 == 5)) || ((!(a8 == 13) && a21 == 1) && a17 == 1)) || ((a21 == 1 && a20 == 1) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 9.3s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 649 SDtfs, 1722 SDslu, 75 SDs, 0 SdLazy, 4105 SolverSat, 714 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1574 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 197 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1946 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 262 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1680 NumberOfCodeBlocks, 1680 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1670 ConstructedInterpolants, 0 QuantifiedInterpolants, 629216 SizeOfPredicates, 1 NumberOfNonLiveVariables, 361 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 793/797 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...