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-f4eb214f-m [2019-10-13 19:51:25,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:51:25,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:51:25,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:51:25,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:51:25,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:51:25,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:51:26,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:51:26,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:51:26,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:51:26,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:51:26,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:51:26,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:51:26,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:51:26,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:51:26,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:51:26,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:51:26,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:51:26,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:51:26,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:51:26,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:51:26,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:51:26,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:51:26,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:51:26,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:51:26,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:51:26,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:51:26,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:51:26,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:51:26,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:51:26,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:51:26,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:51:26,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:51:26,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:51:26,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:51:26,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:51:26,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:51:26,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:51:26,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:51:26,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:51:26,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:51:26,036 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 [2019-10-13 19:51:26,050 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:51:26,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:51:26,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:51:26,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:51:26,052 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:51:26,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:51:26,052 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:51:26,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:51:26,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:51:26,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:51:26,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:51:26,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:51:26,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:51:26,054 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:51:26,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:51:26,054 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:51:26,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:51:26,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:51:26,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:51:26,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:51:26,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:51:26,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:51:26,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:51:26,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:51:26,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:51:26,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:51:26,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:51:26,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:51:26,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:51:26,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:51:26,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:51:26,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:51:26,355 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:51:26,355 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:51:26,356 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.06.cil-1.c [2019-10-13 19:51:26,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30692154c/f03dc5a7c1324faabc4af0ecb6e1f5d4/FLAG376d07266 [2019-10-13 19:51:27,029 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:51:27,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.06.cil-1.c [2019-10-13 19:51:27,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30692154c/f03dc5a7c1324faabc4af0ecb6e1f5d4/FLAG376d07266 [2019-10-13 19:51:27,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30692154c/f03dc5a7c1324faabc4af0ecb6e1f5d4 [2019-10-13 19:51:27,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:51:27,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:51:27,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:51:27,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:51:27,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:51:27,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a714af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27, skipping insertion in model container [2019-10-13 19:51:27,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,395 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:51:27,450 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:51:27,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:51:27,743 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:51:27,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:51:27,940 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:51:27,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27 WrapperNode [2019-10-13 19:51:27,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:51:27,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:51:27,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:51:27,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:51:27,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:27,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:28,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (1/1) ... [2019-10-13 19:51:28,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:51:28,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:51:28,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:51:28,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:51:28,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (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 [2019-10-13 19:51:28,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:51:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:51:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-13 19:51:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-10-13 19:51:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-10-13 19:51:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-10-13 19:51:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-10-13 19:51:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-10-13 19:51:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2019-10-13 19:51:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2019-10-13 19:51:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-10-13 19:51:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-10-13 19:51:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-10-13 19:51:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-10-13 19:51:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-10-13 19:51:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2019-10-13 19:51:28,079 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2019-10-13 19:51:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-13 19:51:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-13 19:51:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-13 19:51:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-13 19:51:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-13 19:51:28,080 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-13 19:51:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-13 19:51:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-10-13 19:51:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-10-13 19:51:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-10-13 19:51:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-13 19:51:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-13 19:51:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-13 19:51:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:51:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:51:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-13 19:51:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-10-13 19:51:28,082 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-10-13 19:51:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-10-13 19:51:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-10-13 19:51:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-10-13 19:51:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2019-10-13 19:51:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2019-10-13 19:51:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-10-13 19:51:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2019-10-13 19:51:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2019-10-13 19:51:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-13 19:51:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-13 19:51:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-13 19:51:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-13 19:51:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-13 19:51:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-13 19:51:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-13 19:51:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-10-13 19:51:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-10-13 19:51:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-13 19:51:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-13 19:51:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-13 19:51:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:51:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:51:28,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:51:29,017 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:51:29,017 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-13 19:51:29,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:51:29 BoogieIcfgContainer [2019-10-13 19:51:29,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:51:29,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:51:29,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:51:29,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:51:29,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:51:27" (1/3) ... [2019-10-13 19:51:29,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f8e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:51:29, skipping insertion in model container [2019-10-13 19:51:29,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:27" (2/3) ... [2019-10-13 19:51:29,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428f8e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:51:29, skipping insertion in model container [2019-10-13 19:51:29,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:51:29" (3/3) ... [2019-10-13 19:51:29,028 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.06.cil-1.c [2019-10-13 19:51:29,038 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:51:29,047 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:51:29,059 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:51:29,102 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:51:29,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:51:29,102 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:51:29,102 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:51:29,103 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:51:29,103 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:51:29,103 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:51:29,103 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:51:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2019-10-13 19:51:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:29,161 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:29,162 INFO L380 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] [2019-10-13 19:51:29,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:29,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1698100173, now seen corresponding path program 1 times [2019-10-13 19:51:29,175 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:29,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373335180] [2019-10-13 19:51:29,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:29,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:29,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:29,706 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-13 19:51:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:30,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373335180] [2019-10-13 19:51:30,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:30,158 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:51:30,159 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816599207] [2019-10-13 19:51:30,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:51:30,166 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:30,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:51:30,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:51:30,185 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 9 states. [2019-10-13 19:51:30,385 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-13 19:51:33,989 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-10-13 19:51:36,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:51:36,439 INFO L93 Difference]: Finished difference Result 1162 states and 1894 transitions. [2019-10-13 19:51:36,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:51:36,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2019-10-13 19:51:36,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:51:36,472 INFO L225 Difference]: With dead ends: 1162 [2019-10-13 19:51:36,472 INFO L226 Difference]: Without dead ends: 866 [2019-10-13 19:51:36,479 INFO L600 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 [2019-10-13 19:51:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2019-10-13 19:51:36,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 562. [2019-10-13 19:51:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-13 19:51:36,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 816 transitions. [2019-10-13 19:51:36,654 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 816 transitions. Word has length 148 [2019-10-13 19:51:36,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:51:36,656 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 816 transitions. [2019-10-13 19:51:36,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:51:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 816 transitions. [2019-10-13 19:51:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:36,673 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:36,673 INFO L380 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] [2019-10-13 19:51:36,673 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:36,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1381668023, now seen corresponding path program 1 times [2019-10-13 19:51:36,675 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:36,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693512] [2019-10-13 19:51:36,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:36,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:36,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:37,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693512] [2019-10-13 19:51:37,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:37,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:51:37,063 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954877472] [2019-10-13 19:51:37,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:51:37,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:37,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:51:37,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:51:37,066 INFO L87 Difference]: Start difference. First operand 562 states and 816 transitions. Second operand 10 states. [2019-10-13 19:51:40,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:51:40,919 INFO L93 Difference]: Finished difference Result 1394 states and 2098 transitions. [2019-10-13 19:51:40,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:51:40,919 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-13 19:51:40,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:51:40,933 INFO L225 Difference]: With dead ends: 1394 [2019-10-13 19:51:40,933 INFO L226 Difference]: Without dead ends: 856 [2019-10-13 19:51:40,937 INFO L600 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 [2019-10-13 19:51:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-13 19:51:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-13 19:51:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-13 19:51:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 809 transitions. [2019-10-13 19:51:41,065 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 809 transitions. Word has length 148 [2019-10-13 19:51:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:51:41,069 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 809 transitions. [2019-10-13 19:51:41,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:51:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 809 transitions. [2019-10-13 19:51:41,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:41,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:41,079 INFO L380 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] [2019-10-13 19:51:41,079 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:41,080 INFO L82 PathProgramCache]: Analyzing trace with hash -234089395, now seen corresponding path program 1 times [2019-10-13 19:51:41,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:41,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048700926] [2019-10-13 19:51:41,082 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:41,083 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:41,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:41,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048700926] [2019-10-13 19:51:41,467 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:41,467 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:51:41,467 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409043491] [2019-10-13 19:51:41,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:51:41,470 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:41,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:51:41,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:51:41,472 INFO L87 Difference]: Start difference. First operand 562 states and 809 transitions. Second operand 10 states. [2019-10-13 19:51:45,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:51:45,212 INFO L93 Difference]: Finished difference Result 1394 states and 2084 transitions. [2019-10-13 19:51:45,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:51:45,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-13 19:51:45,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:51:45,220 INFO L225 Difference]: With dead ends: 1394 [2019-10-13 19:51:45,220 INFO L226 Difference]: Without dead ends: 856 [2019-10-13 19:51:45,223 INFO L600 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 [2019-10-13 19:51:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-13 19:51:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-13 19:51:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-13 19:51:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 802 transitions. [2019-10-13 19:51:45,305 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 802 transitions. Word has length 148 [2019-10-13 19:51:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:51:45,305 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 802 transitions. [2019-10-13 19:51:45,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:51:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 802 transitions. [2019-10-13 19:51:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:45,316 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:45,316 INFO L380 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] [2019-10-13 19:51:45,317 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:45,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:45,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1934700113, now seen corresponding path program 1 times [2019-10-13 19:51:45,317 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:45,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867962673] [2019-10-13 19:51:45,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:45,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:45,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,522 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-13 19:51:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:45,722 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867962673] [2019-10-13 19:51:45,722 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:45,722 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:51:45,722 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589398776] [2019-10-13 19:51:45,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:51:45,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:45,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:51:45,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:51:45,724 INFO L87 Difference]: Start difference. First operand 562 states and 802 transitions. Second operand 10 states. [2019-10-13 19:51:49,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:51:49,251 INFO L93 Difference]: Finished difference Result 1394 states and 2066 transitions. [2019-10-13 19:51:49,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:51:49,251 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-13 19:51:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:51:49,257 INFO L225 Difference]: With dead ends: 1394 [2019-10-13 19:51:49,257 INFO L226 Difference]: Without dead ends: 856 [2019-10-13 19:51:49,260 INFO L600 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 [2019-10-13 19:51:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-13 19:51:49,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-13 19:51:49,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-13 19:51:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 795 transitions. [2019-10-13 19:51:49,336 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 795 transitions. Word has length 148 [2019-10-13 19:51:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:51:49,337 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 795 transitions. [2019-10-13 19:51:49,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:51:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 795 transitions. [2019-10-13 19:51:49,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:49,339 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:49,340 INFO L380 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] [2019-10-13 19:51:49,340 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:49,340 INFO L82 PathProgramCache]: Analyzing trace with hash 2143208397, now seen corresponding path program 1 times [2019-10-13 19:51:49,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:49,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429129126] [2019-10-13 19:51:49,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:49,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:49,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:49,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429129126] [2019-10-13 19:51:49,716 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:49,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:51:49,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53667203] [2019-10-13 19:51:49,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:51:49,717 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:49,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:51:49,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:51:49,718 INFO L87 Difference]: Start difference. First operand 562 states and 795 transitions. Second operand 10 states. [2019-10-13 19:51:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:51:52,750 INFO L93 Difference]: Finished difference Result 1394 states and 2048 transitions. [2019-10-13 19:51:52,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:51:52,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-13 19:51:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:51:52,757 INFO L225 Difference]: With dead ends: 1394 [2019-10-13 19:51:52,757 INFO L226 Difference]: Without dead ends: 856 [2019-10-13 19:51:52,759 INFO L600 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 [2019-10-13 19:51:52,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-13 19:51:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-13 19:51:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-13 19:51:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 788 transitions. [2019-10-13 19:51:52,827 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 788 transitions. Word has length 148 [2019-10-13 19:51:52,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:51:52,827 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 788 transitions. [2019-10-13 19:51:52,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:51:52,827 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 788 transitions. [2019-10-13 19:51:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:52,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:52,830 INFO L380 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] [2019-10-13 19:51:52,830 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:52,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:52,830 INFO L82 PathProgramCache]: Analyzing trace with hash 421205711, now seen corresponding path program 1 times [2019-10-13 19:51:52,831 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:52,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069713901] [2019-10-13 19:51:52,831 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:52,831 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:52,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:53,139 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069713901] [2019-10-13 19:51:53,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:53,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:51:53,139 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543126961] [2019-10-13 19:51:53,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:51:53,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:53,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:51:53,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:51:53,141 INFO L87 Difference]: Start difference. First operand 562 states and 788 transitions. Second operand 10 states. [2019-10-13 19:51:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:51:56,501 INFO L93 Difference]: Finished difference Result 1394 states and 2030 transitions. [2019-10-13 19:51:56,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:51:56,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-13 19:51:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:51:56,507 INFO L225 Difference]: With dead ends: 1394 [2019-10-13 19:51:56,507 INFO L226 Difference]: Without dead ends: 856 [2019-10-13 19:51:56,509 INFO L600 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 [2019-10-13 19:51:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-13 19:51:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-13 19:51:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-13 19:51:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 781 transitions. [2019-10-13 19:51:56,578 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 781 transitions. Word has length 148 [2019-10-13 19:51:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:51:56,578 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 781 transitions. [2019-10-13 19:51:56,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:51:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 781 transitions. [2019-10-13 19:51:56,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:51:56,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:56,581 INFO L380 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] [2019-10-13 19:51:56,581 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:56,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:56,582 INFO L82 PathProgramCache]: Analyzing trace with hash 363322187, now seen corresponding path program 1 times [2019-10-13 19:51:56,582 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:56,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457579490] [2019-10-13 19:51:56,582 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:56,583 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:56,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:56,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457579490] [2019-10-13 19:51:56,909 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:56,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:51:56,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374861927] [2019-10-13 19:51:56,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:51:56,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:51:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:51:56,911 INFO L87 Difference]: Start difference. First operand 562 states and 781 transitions. Second operand 10 states. [2019-10-13 19:52:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:00,927 INFO L93 Difference]: Finished difference Result 1677 states and 2524 transitions. [2019-10-13 19:52:00,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:52:00,928 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-13 19:52:00,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:00,936 INFO L225 Difference]: With dead ends: 1677 [2019-10-13 19:52:00,936 INFO L226 Difference]: Without dead ends: 1139 [2019-10-13 19:52:00,939 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2019-10-13 19:52:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2019-10-13 19:52:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 714. [2019-10-13 19:52:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2019-10-13 19:52:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 964 transitions. [2019-10-13 19:52:01,030 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 964 transitions. Word has length 148 [2019-10-13 19:52:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:01,030 INFO L462 AbstractCegarLoop]: Abstraction has 714 states and 964 transitions. [2019-10-13 19:52:01,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:01,031 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 964 transitions. [2019-10-13 19:52:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:52:01,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:01,033 INFO L380 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] [2019-10-13 19:52:01,033 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:01,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1301113009, now seen corresponding path program 1 times [2019-10-13 19:52:01,034 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:01,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872578190] [2019-10-13 19:52:01,034 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:01,034 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:01,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:01,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872578190] [2019-10-13 19:52:01,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:01,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:01,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404250367] [2019-10-13 19:52:01,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:01,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:01,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:01,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:01,382 INFO L87 Difference]: Start difference. First operand 714 states and 964 transitions. Second operand 10 states. [2019-10-13 19:52:01,536 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-13 19:52:03,319 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 115