/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:24:19,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:24:19,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:24:19,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:24:19,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:24:19,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:24:19,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:24:19,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:24:19,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:24:19,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:24:19,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:24:19,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:24:19,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:24:19,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:24:19,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:24:19,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:24:19,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:24:19,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:24:19,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:24:19,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:24:19,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:24:19,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:24:19,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:24:19,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:24:19,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:24:19,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:24:19,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:24:19,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:24:19,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:24:19,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:24:19,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:24:19,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:24:19,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:24:19,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:24:19,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:24:19,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:24:19,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:24:19,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:24:19,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:24:19,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:24:19,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:24:19,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:24:19,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:24:19,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:24:19,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:24:19,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:24:19,228 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:24:19,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:24:19,229 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:24:19,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:24:19,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:24:19,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:24:19,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:24:19,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:24:19,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:24:19,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:24:19,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:24:19,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:24:19,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:24:19,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:24:19,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:24:19,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:24:19,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:24:19,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:24:19,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:24:19,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:24:19,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:24:19,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:24:19,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:24:19,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:24:19,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:24:19,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:24:19,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:24:19,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:24:19,523 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:24:19,524 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:24:19,524 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.06.cil-1.c [2019-11-06 22:24:19,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91986cdd/52c71e86e237410c8e8af3dca445ab1b/FLAG70666424b [2019-11-06 22:24:20,075 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:24:20,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.06.cil-1.c [2019-11-06 22:24:20,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91986cdd/52c71e86e237410c8e8af3dca445ab1b/FLAG70666424b [2019-11-06 22:24:20,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91986cdd/52c71e86e237410c8e8af3dca445ab1b [2019-11-06 22:24:20,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:24:20,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:24:20,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:24:20,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:24:20,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:24:20,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:20,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3efeb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20, skipping insertion in model container [2019-11-06 22:24:20,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:20,416 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:24:20,462 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:24:20,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:24:20,745 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:24:20,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:24:20,948 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:24:20,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20 WrapperNode [2019-11-06 22:24:20,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:24:20,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:24:20,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:24:20,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:24:20,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:20,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:20,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:20,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:21,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:21,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:21,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... [2019-11-06 22:24:21,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:24:21,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:24:21,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:24:21,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:24:21,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-11-06 22:24:21,103 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-11-06 22:24:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-11-06 22:24:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2019-11-06 22:24:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2019-11-06 22:24:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-11-06 22:24:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-11-06 22:24:21,104 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-11-06 22:24:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-11-06 22:24:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-11-06 22:24:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2019-11-06 22:24:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2019-11-06 22:24:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-11-06 22:24:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-11-06 22:24:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-11-06 22:24:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-11-06 22:24:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-11-06 22:24:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-11-06 22:24:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-11-06 22:24:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:24:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2019-11-06 22:24:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-11-06 22:24:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-11-06 22:24:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-11-06 22:24:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-11-06 22:24:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-11-06 22:24:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-11-06 22:24:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:24:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:24:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:24:22,074 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:24:22,074 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-06 22:24:22,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:22 BoogieIcfgContainer [2019-11-06 22:24:22,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:24:22,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:24:22,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:24:22,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:24:22,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:20" (1/3) ... [2019-11-06 22:24:22,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4c0ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:22, skipping insertion in model container [2019-11-06 22:24:22,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:20" (2/3) ... [2019-11-06 22:24:22,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4c0ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:22, skipping insertion in model container [2019-11-06 22:24:22,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:22" (3/3) ... [2019-11-06 22:24:22,085 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.06.cil-1.c [2019-11-06 22:24:22,096 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:24:22,120 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:24:22,133 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:24:22,161 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:24:22,161 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:24:22,161 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:24:22,161 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:24:22,162 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:24:22,162 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:24:22,162 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:24:22,162 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:24:22,187 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2019-11-06 22:24:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:22,203 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:22,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:22,206 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:22,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1698100173, now seen corresponding path program 1 times [2019-11-06 22:24:22,218 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:22,218 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192550929] [2019-11-06 22:24:22,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:22,808 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-06 22:24:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:23,214 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192550929] [2019-11-06 22:24:23,215 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:23,215 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:24:23,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258183576] [2019-11-06 22:24:23,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:24:23,224 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:23,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:24:23,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:24:23,243 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 9 states. [2019-11-06 22:24:23,465 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-06 22:24:27,065 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-06 22:24:29,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:29,627 INFO L93 Difference]: Finished difference Result 1162 states and 1894 transitions. [2019-11-06 22:24:29,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:24:29,629 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2019-11-06 22:24:29,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:29,670 INFO L225 Difference]: With dead ends: 1162 [2019-11-06 22:24:29,670 INFO L226 Difference]: Without dead ends: 866 [2019-11-06 22:24:29,686 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:24:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2019-11-06 22:24:29,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 562. [2019-11-06 22:24:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-06 22:24:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 816 transitions. [2019-11-06 22:24:29,879 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 816 transitions. Word has length 148 [2019-11-06 22:24:29,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:29,879 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 816 transitions. [2019-11-06 22:24:29,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:24:29,880 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 816 transitions. [2019-11-06 22:24:29,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:29,884 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:29,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:29,885 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:29,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:29,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1381668023, now seen corresponding path program 1 times [2019-11-06 22:24:29,886 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:29,886 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654500938] [2019-11-06 22:24:29,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:30,308 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654500938] [2019-11-06 22:24:30,308 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:30,308 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:30,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085052168] [2019-11-06 22:24:30,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:30,313 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:30,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:30,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:30,314 INFO L87 Difference]: Start difference. First operand 562 states and 816 transitions. Second operand 10 states. [2019-11-06 22:24:34,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:34,174 INFO L93 Difference]: Finished difference Result 1394 states and 2098 transitions. [2019-11-06 22:24:34,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:24:34,175 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-11-06 22:24:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:34,182 INFO L225 Difference]: With dead ends: 1394 [2019-11-06 22:24:34,182 INFO L226 Difference]: Without dead ends: 856 [2019-11-06 22:24:34,185 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:24:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-11-06 22:24:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-11-06 22:24:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-06 22:24:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 809 transitions. [2019-11-06 22:24:34,275 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 809 transitions. Word has length 148 [2019-11-06 22:24:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:34,276 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 809 transitions. [2019-11-06 22:24:34,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:24:34,276 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 809 transitions. [2019-11-06 22:24:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:34,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:34,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:34,279 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:34,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:34,280 INFO L82 PathProgramCache]: Analyzing trace with hash -234089395, now seen corresponding path program 1 times [2019-11-06 22:24:34,280 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:34,280 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322155412] [2019-11-06 22:24:34,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:34,701 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322155412] [2019-11-06 22:24:34,701 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:34,702 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:34,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295089926] [2019-11-06 22:24:34,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:34,705 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:34,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:34,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:34,706 INFO L87 Difference]: Start difference. First operand 562 states and 809 transitions. Second operand 10 states. [2019-11-06 22:24:34,854 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-06 22:24:38,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:38,332 INFO L93 Difference]: Finished difference Result 1394 states and 2084 transitions. [2019-11-06 22:24:38,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:24:38,332 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-11-06 22:24:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:38,340 INFO L225 Difference]: With dead ends: 1394 [2019-11-06 22:24:38,340 INFO L226 Difference]: Without dead ends: 856 [2019-11-06 22:24:38,343 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:24:38,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-11-06 22:24:38,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-11-06 22:24:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-06 22:24:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 802 transitions. [2019-11-06 22:24:38,415 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 802 transitions. Word has length 148 [2019-11-06 22:24:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:38,416 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 802 transitions. [2019-11-06 22:24:38,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:24:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 802 transitions. [2019-11-06 22:24:38,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:38,418 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:38,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:38,418 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:38,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:38,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1934700113, now seen corresponding path program 1 times [2019-11-06 22:24:38,419 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:38,419 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675385496] [2019-11-06 22:24:38,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:38,997 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675385496] [2019-11-06 22:24:38,997 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:38,997 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:38,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189587950] [2019-11-06 22:24:38,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:38,999 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:38,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:38,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:39,000 INFO L87 Difference]: Start difference. First operand 562 states and 802 transitions. Second operand 10 states. [2019-11-06 22:24:39,134 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-06 22:24:42,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:42,661 INFO L93 Difference]: Finished difference Result 1394 states and 2066 transitions. [2019-11-06 22:24:42,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:24:42,662 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-11-06 22:24:42,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:42,667 INFO L225 Difference]: With dead ends: 1394 [2019-11-06 22:24:42,668 INFO L226 Difference]: Without dead ends: 856 [2019-11-06 22:24:42,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:24:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-11-06 22:24:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-11-06 22:24:42,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-06 22:24:42,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 795 transitions. [2019-11-06 22:24:42,734 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 795 transitions. Word has length 148 [2019-11-06 22:24:42,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:42,734 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 795 transitions. [2019-11-06 22:24:42,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:24:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 795 transitions. [2019-11-06 22:24:42,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:42,736 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:42,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:42,737 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:42,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:42,737 INFO L82 PathProgramCache]: Analyzing trace with hash 2143208397, now seen corresponding path program 1 times [2019-11-06 22:24:42,738 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:42,738 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439012971] [2019-11-06 22:24:42,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:42,906 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-06 22:24:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:43,120 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439012971] [2019-11-06 22:24:43,120 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:43,121 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:43,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958599177] [2019-11-06 22:24:43,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:43,122 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:43,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:43,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:43,122 INFO L87 Difference]: Start difference. First operand 562 states and 795 transitions. Second operand 10 states. [2019-11-06 22:24:46,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:46,089 INFO L93 Difference]: Finished difference Result 1394 states and 2048 transitions. [2019-11-06 22:24:46,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:24:46,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-11-06 22:24:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:46,094 INFO L225 Difference]: With dead ends: 1394 [2019-11-06 22:24:46,095 INFO L226 Difference]: Without dead ends: 856 [2019-11-06 22:24:46,097 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:24:46,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-11-06 22:24:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-11-06 22:24:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-06 22:24:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 788 transitions. [2019-11-06 22:24:46,170 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 788 transitions. Word has length 148 [2019-11-06 22:24:46,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:46,171 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 788 transitions. [2019-11-06 22:24:46,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:24:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 788 transitions. [2019-11-06 22:24:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:46,174 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:46,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:46,174 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash 421205711, now seen corresponding path program 1 times [2019-11-06 22:24:46,175 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:46,175 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603149837] [2019-11-06 22:24:46,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,380 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-06 22:24:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:46,572 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603149837] [2019-11-06 22:24:46,573 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:46,574 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:46,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895692699] [2019-11-06 22:24:46,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:46,575 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:46,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:46,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:46,576 INFO L87 Difference]: Start difference. First operand 562 states and 788 transitions. Second operand 10 states. [2019-11-06 22:24:46,725 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-06 22:24:47,001 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-06 22:24:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:50,256 INFO L93 Difference]: Finished difference Result 1394 states and 2030 transitions. [2019-11-06 22:24:50,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:24:50,259 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-11-06 22:24:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:50,263 INFO L225 Difference]: With dead ends: 1394 [2019-11-06 22:24:50,263 INFO L226 Difference]: Without dead ends: 856 [2019-11-06 22:24:50,264 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:24:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-11-06 22:24:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-11-06 22:24:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-06 22:24:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 781 transitions. [2019-11-06 22:24:50,335 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 781 transitions. Word has length 148 [2019-11-06 22:24:50,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:50,336 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 781 transitions. [2019-11-06 22:24:50,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:24:50,336 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 781 transitions. [2019-11-06 22:24:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:50,338 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:50,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:50,338 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash 363322187, now seen corresponding path program 1 times [2019-11-06 22:24:50,339 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:50,339 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922910828] [2019-11-06 22:24:50,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:50,687 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922910828] [2019-11-06 22:24:50,687 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:50,687 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:50,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640153978] [2019-11-06 22:24:50,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:50,688 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:50,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:50,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:50,689 INFO L87 Difference]: Start difference. First operand 562 states and 781 transitions. Second operand 10 states. [2019-11-06 22:24:52,643 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-06 22:24:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:24:54,854 INFO L93 Difference]: Finished difference Result 1677 states and 2524 transitions. [2019-11-06 22:24:54,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:24:54,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-11-06 22:24:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:24:54,861 INFO L225 Difference]: With dead ends: 1677 [2019-11-06 22:24:54,861 INFO L226 Difference]: Without dead ends: 1139 [2019-11-06 22:24:54,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2019-11-06 22:24:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2019-11-06 22:24:54,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 714. [2019-11-06 22:24:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2019-11-06 22:24:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 964 transitions. [2019-11-06 22:24:54,960 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 964 transitions. Word has length 148 [2019-11-06 22:24:54,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:24:54,961 INFO L462 AbstractCegarLoop]: Abstraction has 714 states and 964 transitions. [2019-11-06 22:24:54,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:24:54,961 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 964 transitions. [2019-11-06 22:24:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 22:24:54,963 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:24:54,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:24:54,964 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:24:54,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:24:54,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1301113009, now seen corresponding path program 1 times [2019-11-06 22:24:54,965 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:24:54,965 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865933956] [2019-11-06 22:24:54,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:24:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:24:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:24:55,301 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865933956] [2019-11-06 22:24:55,301 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:24:55,302 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:24:55,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758595217] [2019-11-06 22:24:55,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:24:55,303 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:24:55,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:24:55,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:24:55,303 INFO L87 Difference]: Start difference. First operand 714 states and 964 transitions. Second operand 10 states. [2019-11-06 22:24:55,448 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-11-06 22:24:57,302 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 115