/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.01.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 22:00:42,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 22:00:42,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 22:00:42,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 22:00:42,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 22:00:42,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 22:00:42,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 22:00:42,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 22:00:42,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 22:00:42,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 22:00:42,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 22:00:42,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 22:00:42,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 22:00:42,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 22:00:42,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 22:00:42,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 22:00:42,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 22:00:42,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 22:00:42,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 22:00:42,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 22:00:42,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 22:00:42,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 22:00:42,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 22:00:42,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 22:00:42,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 22:00:42,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 22:00:42,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 22:00:42,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 22:00:42,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 22:00:42,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 22:00:42,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 22:00:42,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 22:00:42,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 22:00:42,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 22:00:42,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 22:00:42,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 22:00:42,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 22:00:42,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 22:00:42,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 22:00:42,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 22:00:42,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 22:00:42,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-27 22:00:42,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 22:00:42,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 22:00:42,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 22:00:42,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 22:00:42,215 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 22:00:42,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 22:00:42,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 22:00:42,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 22:00:42,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 22:00:42,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 22:00:42,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 22:00:42,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 22:00:42,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 22:00:42,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 22:00:42,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 22:00:42,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 22:00:42,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 22:00:42,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 22:00:42,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 22:00:42,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 22:00:42,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 22:00:42,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 22:00:42,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 22:00:42,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 22:00:42,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 22:00:42,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 22:00:42,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 22:00:42,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 22:00:42,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 22:00:42,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-27 22:00:42,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 22:00:42,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 22:00:42,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 22:00:42,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 22:00:42,702 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 22:00:42,703 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-1.c [2020-08-27 22:00:42,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0fea66d8/4b67095178b642dfa8576afb11f2e15c/FLAG219eead7d [2020-08-27 22:00:43,361 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 22:00:43,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/token_ring.01.cil-1.c [2020-08-27 22:00:43,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0fea66d8/4b67095178b642dfa8576afb11f2e15c/FLAG219eead7d [2020-08-27 22:00:43,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0fea66d8/4b67095178b642dfa8576afb11f2e15c [2020-08-27 22:00:43,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 22:00:43,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 22:00:43,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 22:00:43,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 22:00:43,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 22:00:43,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e06715f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43, skipping insertion in model container [2020-08-27 22:00:43,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 22:00:43,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 22:00:44,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 22:00:44,067 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 22:00:44,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 22:00:44,233 INFO L208 MainTranslator]: Completed translation [2020-08-27 22:00:44,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44 WrapperNode [2020-08-27 22:00:44,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 22:00:44,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 22:00:44,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 22:00:44,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 22:00:44,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... [2020-08-27 22:00:44,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 22:00:44,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 22:00:44,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 22:00:44,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 22:00:44,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 22:00:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 22:00:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 22:00:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-27 22:00:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-27 22:00:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-27 22:00:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-27 22:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-27 22:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-27 22:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-27 22:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-27 22:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-27 22:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-27 22:00:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-27 22:00:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-27 22:00:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-27 22:00:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-27 22:00:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-27 22:00:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-27 22:00:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-27 22:00:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-27 22:00:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 22:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 22:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-27 22:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-27 22:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-27 22:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-27 22:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 22:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-27 22:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-27 22:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-27 22:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-27 22:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-27 22:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-27 22:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-27 22:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-27 22:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-27 22:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-27 22:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-27 22:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-27 22:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-27 22:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-27 22:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 22:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 22:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 22:00:44,899 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 22:00:44,900 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-27 22:00:44,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:00:44 BoogieIcfgContainer [2020-08-27 22:00:44,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 22:00:44,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 22:00:44,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 22:00:44,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 22:00:44,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:00:43" (1/3) ... [2020-08-27 22:00:44,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522a0e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:00:44, skipping insertion in model container [2020-08-27 22:00:44,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:44" (2/3) ... [2020-08-27 22:00:44,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522a0e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:00:44, skipping insertion in model container [2020-08-27 22:00:44,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:00:44" (3/3) ... [2020-08-27 22:00:44,917 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-1.c [2020-08-27 22:00:44,930 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 22:00:44,942 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 22:00:44,966 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 22:00:45,001 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 22:00:45,002 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 22:00:45,002 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 22:00:45,002 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 22:00:45,002 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 22:00:45,002 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 22:00:45,002 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 22:00:45,002 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 22:00:45,030 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-08-27 22:00:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:45,043 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:45,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:45,045 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:45,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:45,052 INFO L82 PathProgramCache]: Analyzing trace with hash 205618956, now seen corresponding path program 1 times [2020-08-27 22:00:45,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:45,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459879421] [2020-08-27 22:00:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:45,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459879421] [2020-08-27 22:00:45,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:45,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-27 22:00:45,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164303093] [2020-08-27 22:00:45,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-27 22:00:45,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:45,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-27 22:00:45,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-27 22:00:45,739 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 9 states. [2020-08-27 22:00:48,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:48,065 INFO L93 Difference]: Finished difference Result 501 states and 755 transitions. [2020-08-27 22:00:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-27 22:00:48,068 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-08-27 22:00:48,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:48,091 INFO L225 Difference]: With dead ends: 501 [2020-08-27 22:00:48,091 INFO L226 Difference]: Without dead ends: 357 [2020-08-27 22:00:48,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-08-27 22:00:48,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-08-27 22:00:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 244. [2020-08-27 22:00:48,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-08-27 22:00:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 323 transitions. [2020-08-27 22:00:48,212 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 323 transitions. Word has length 77 [2020-08-27 22:00:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:48,213 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 323 transitions. [2020-08-27 22:00:48,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-27 22:00:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 323 transitions. [2020-08-27 22:00:48,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:48,218 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:48,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:48,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 22:00:48,219 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:48,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:48,219 INFO L82 PathProgramCache]: Analyzing trace with hash -2125445556, now seen corresponding path program 1 times [2020-08-27 22:00:48,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:48,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022152441] [2020-08-27 22:00:48,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:48,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022152441] [2020-08-27 22:00:48,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:48,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:48,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661728865] [2020-08-27 22:00:48,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:48,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:48,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:48,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:48,497 INFO L87 Difference]: Start difference. First operand 244 states and 323 transitions. Second operand 10 states. [2020-08-27 22:00:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:49,812 INFO L93 Difference]: Finished difference Result 573 states and 802 transitions. [2020-08-27 22:00:49,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-27 22:00:49,813 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-08-27 22:00:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:49,825 INFO L225 Difference]: With dead ends: 573 [2020-08-27 22:00:49,826 INFO L226 Difference]: Without dead ends: 348 [2020-08-27 22:00:49,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-27 22:00:49,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-27 22:00:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 244. [2020-08-27 22:00:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-08-27 22:00:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 316 transitions. [2020-08-27 22:00:49,908 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 316 transitions. Word has length 77 [2020-08-27 22:00:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:49,909 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 316 transitions. [2020-08-27 22:00:49,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 316 transitions. [2020-08-27 22:00:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:49,911 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:49,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:49,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 22:00:49,912 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:49,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:49,912 INFO L82 PathProgramCache]: Analyzing trace with hash -676620532, now seen corresponding path program 1 times [2020-08-27 22:00:49,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:49,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073534969] [2020-08-27 22:00:49,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:50,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073534969] [2020-08-27 22:00:50,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:50,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:50,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845905107] [2020-08-27 22:00:50,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:50,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:50,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:50,175 INFO L87 Difference]: Start difference. First operand 244 states and 316 transitions. Second operand 10 states. [2020-08-27 22:00:51,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:51,756 INFO L93 Difference]: Finished difference Result 696 states and 1012 transitions. [2020-08-27 22:00:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-27 22:00:51,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-08-27 22:00:51,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:51,765 INFO L225 Difference]: With dead ends: 696 [2020-08-27 22:00:51,765 INFO L226 Difference]: Without dead ends: 471 [2020-08-27 22:00:51,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-08-27 22:00:51,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-08-27 22:00:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 296. [2020-08-27 22:00:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-08-27 22:00:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 369 transitions. [2020-08-27 22:00:51,841 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 369 transitions. Word has length 77 [2020-08-27 22:00:51,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:51,841 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 369 transitions. [2020-08-27 22:00:51,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:51,842 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 369 transitions. [2020-08-27 22:00:51,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:51,843 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:51,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:51,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 22:00:51,844 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:51,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:51,845 INFO L82 PathProgramCache]: Analyzing trace with hash 758526605, now seen corresponding path program 1 times [2020-08-27 22:00:51,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:51,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417857456] [2020-08-27 22:00:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:51,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:51,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:51,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:51,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:52,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:52,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:52,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:52,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:52,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417857456] [2020-08-27 22:00:52,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:52,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:52,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719506001] [2020-08-27 22:00:52,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:52,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:52,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:52,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:52,071 INFO L87 Difference]: Start difference. First operand 296 states and 369 transitions. Second operand 10 states. [2020-08-27 22:00:53,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:53,539 INFO L93 Difference]: Finished difference Result 718 states and 955 transitions. [2020-08-27 22:00:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 22:00:53,540 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-08-27 22:00:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:53,544 INFO L225 Difference]: With dead ends: 718 [2020-08-27 22:00:53,544 INFO L226 Difference]: Without dead ends: 442 [2020-08-27 22:00:53,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-08-27 22:00:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-08-27 22:00:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 316. [2020-08-27 22:00:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-08-27 22:00:53,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 389 transitions. [2020-08-27 22:00:53,594 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 389 transitions. Word has length 77 [2020-08-27 22:00:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:53,595 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 389 transitions. [2020-08-27 22:00:53,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 389 transitions. [2020-08-27 22:00:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:53,601 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:53,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:53,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 22:00:53,602 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:53,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:53,605 INFO L82 PathProgramCache]: Analyzing trace with hash -613280693, now seen corresponding path program 1 times [2020-08-27 22:00:53,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:53,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988351292] [2020-08-27 22:00:53,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:53,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988351292] [2020-08-27 22:00:53,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:53,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:53,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531483634] [2020-08-27 22:00:53,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:53,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:53,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:53,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:53,822 INFO L87 Difference]: Start difference. First operand 316 states and 389 transitions. Second operand 10 states. [2020-08-27 22:00:55,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:55,244 INFO L93 Difference]: Finished difference Result 748 states and 981 transitions. [2020-08-27 22:00:55,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-27 22:00:55,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-08-27 22:00:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:55,248 INFO L225 Difference]: With dead ends: 748 [2020-08-27 22:00:55,248 INFO L226 Difference]: Without dead ends: 452 [2020-08-27 22:00:55,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-08-27 22:00:55,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-08-27 22:00:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 326. [2020-08-27 22:00:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-08-27 22:00:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 397 transitions. [2020-08-27 22:00:55,280 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 397 transitions. Word has length 77 [2020-08-27 22:00:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:55,281 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 397 transitions. [2020-08-27 22:00:55,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 397 transitions. [2020-08-27 22:00:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:55,283 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:55,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:55,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 22:00:55,283 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:55,284 INFO L82 PathProgramCache]: Analyzing trace with hash 88319181, now seen corresponding path program 1 times [2020-08-27 22:00:55,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:55,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031639474] [2020-08-27 22:00:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:55,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031639474] [2020-08-27 22:00:55,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:55,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:55,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713466103] [2020-08-27 22:00:55,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:55,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:55,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:55,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:55,477 INFO L87 Difference]: Start difference. First operand 326 states and 397 transitions. Second operand 10 states. [2020-08-27 22:00:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:57,046 INFO L93 Difference]: Finished difference Result 894 states and 1170 transitions. [2020-08-27 22:00:57,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-27 22:00:57,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-08-27 22:00:57,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:57,060 INFO L225 Difference]: With dead ends: 894 [2020-08-27 22:00:57,060 INFO L226 Difference]: Without dead ends: 587 [2020-08-27 22:00:57,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-08-27 22:00:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-08-27 22:00:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 362. [2020-08-27 22:00:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-08-27 22:00:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 422 transitions. [2020-08-27 22:00:57,105 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 422 transitions. Word has length 77 [2020-08-27 22:00:57,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:57,107 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 422 transitions. [2020-08-27 22:00:57,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 422 transitions. [2020-08-27 22:00:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-27 22:00:57,108 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:57,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:57,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 22:00:57,109 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:57,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:57,109 INFO L82 PathProgramCache]: Analyzing trace with hash 228867791, now seen corresponding path program 1 times [2020-08-27 22:00:57,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:57,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475051890] [2020-08-27 22:00:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:57,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475051890] [2020-08-27 22:00:57,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:57,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-27 22:00:57,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678665518] [2020-08-27 22:00:57,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-27 22:00:57,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:57,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-27 22:00:57,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-27 22:00:57,355 INFO L87 Difference]: Start difference. First operand 362 states and 422 transitions. Second operand 7 states. [2020-08-27 22:00:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:58,721 INFO L93 Difference]: Finished difference Result 1180 states and 1487 transitions. [2020-08-27 22:00:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 22:00:58,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-27 22:00:58,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:58,730 INFO L225 Difference]: With dead ends: 1180 [2020-08-27 22:00:58,730 INFO L226 Difference]: Without dead ends: 838 [2020-08-27 22:00:58,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-08-27 22:00:58,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-08-27 22:00:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 736. [2020-08-27 22:00:58,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2020-08-27 22:00:58,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 896 transitions. [2020-08-27 22:00:58,808 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 896 transitions. Word has length 77 [2020-08-27 22:00:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:58,808 INFO L479 AbstractCegarLoop]: Abstraction has 736 states and 896 transitions. [2020-08-27 22:00:58,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-27 22:00:58,808 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 896 transitions. [2020-08-27 22:00:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-27 22:00:58,811 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:58,811 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:00:58,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-27 22:00:58,812 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:58,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:58,812 INFO L82 PathProgramCache]: Analyzing trace with hash -208124888, now seen corresponding path program 1 times [2020-08-27 22:00:58,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:58,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478345367] [2020-08-27 22:00:58,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:00:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:00:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:00:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:00:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:00:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-27 22:00:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:00:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:59,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:59,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-27 22:00:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-08-27 22:00:59,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478345367] [2020-08-27 22:00:59,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 22:00:59,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-27 22:00:59,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127026901] [2020-08-27 22:00:59,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-27 22:00:59,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:59,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-27 22:00:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-27 22:00:59,070 INFO L87 Difference]: Start difference. First operand 736 states and 896 transitions. Second operand 9 states. [2020-08-27 22:01:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:01,000 INFO L93 Difference]: Finished difference Result 2077 states and 2719 transitions. [2020-08-27 22:01:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-27 22:01:01,000 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-08-27 22:01:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:01,011 INFO L225 Difference]: With dead ends: 2077 [2020-08-27 22:01:01,011 INFO L226 Difference]: Without dead ends: 1361 [2020-08-27 22:01:01,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-08-27 22:01:01,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2020-08-27 22:01:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1278. [2020-08-27 22:01:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-08-27 22:01:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1535 transitions. [2020-08-27 22:01:01,165 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1535 transitions. Word has length 121 [2020-08-27 22:01:01,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:01,166 INFO L479 AbstractCegarLoop]: Abstraction has 1278 states and 1535 transitions. [2020-08-27 22:01:01,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-27 22:01:01,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1535 transitions. [2020-08-27 22:01:01,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-27 22:01:01,171 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:01:01,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:01:01,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-27 22:01:01,172 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:01:01,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:01:01,172 INFO L82 PathProgramCache]: Analyzing trace with hash 772889349, now seen corresponding path program 1 times [2020-08-27 22:01:01,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:01:01,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678327655] [2020-08-27 22:01:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:01:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:01:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:01:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:01:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:01:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:01:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:01:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:01:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-27 22:01:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-27 22:01:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-27 22:01:01,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678327655] [2020-08-27 22:01:01,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:01:01,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-27 22:01:01,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092781075] [2020-08-27 22:01:01,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-27 22:01:01,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:01:01,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-27 22:01:01,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-27 22:01:01,462 INFO L87 Difference]: Start difference. First operand 1278 states and 1535 transitions. Second operand 9 states. [2020-08-27 22:01:03,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:03,638 INFO L93 Difference]: Finished difference Result 3315 states and 4133 transitions. [2020-08-27 22:01:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-27 22:01:03,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2020-08-27 22:01:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:03,648 INFO L225 Difference]: With dead ends: 3315 [2020-08-27 22:01:03,649 INFO L226 Difference]: Without dead ends: 1560 [2020-08-27 22:01:03,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-08-27 22:01:03,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-08-27 22:01:03,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1494. [2020-08-27 22:01:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-08-27 22:01:03,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 1762 transitions. [2020-08-27 22:01:03,776 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 1762 transitions. Word has length 121 [2020-08-27 22:01:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:03,777 INFO L479 AbstractCegarLoop]: Abstraction has 1494 states and 1762 transitions. [2020-08-27 22:01:03,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-27 22:01:03,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 1762 transitions. [2020-08-27 22:01:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-08-27 22:01:03,781 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:01:03,782 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:01:03,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-27 22:01:03,783 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:01:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:01:03,783 INFO L82 PathProgramCache]: Analyzing trace with hash 846884099, now seen corresponding path program 1 times [2020-08-27 22:01:03,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:01:03,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079857650] [2020-08-27 22:01:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:01:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:01:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:01:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:01:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:01:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:01:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:01:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:01:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-27 22:01:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-27 22:01:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-27 22:01:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:03,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-27 22:01:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-27 22:01:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-08-27 22:01:04,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079857650] [2020-08-27 22:01:04,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 22:01:04,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-27 22:01:04,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641403377] [2020-08-27 22:01:04,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-27 22:01:04,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:01:04,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-27 22:01:04,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-27 22:01:04,088 INFO L87 Difference]: Start difference. First operand 1494 states and 1762 transitions. Second operand 9 states. [2020-08-27 22:01:05,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:05,735 INFO L93 Difference]: Finished difference Result 3041 states and 3692 transitions. [2020-08-27 22:01:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-27 22:01:05,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2020-08-27 22:01:05,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:05,745 INFO L225 Difference]: With dead ends: 3041 [2020-08-27 22:01:05,746 INFO L226 Difference]: Without dead ends: 1568 [2020-08-27 22:01:05,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-08-27 22:01:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-08-27 22:01:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1488. [2020-08-27 22:01:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2020-08-27 22:01:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1728 transitions. [2020-08-27 22:01:05,877 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1728 transitions. Word has length 175 [2020-08-27 22:01:05,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:05,877 INFO L479 AbstractCegarLoop]: Abstraction has 1488 states and 1728 transitions. [2020-08-27 22:01:05,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-27 22:01:05,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1728 transitions. [2020-08-27 22:01:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-27 22:01:05,885 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:01:05,885 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:01:05,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-27 22:01:05,886 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:01:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:01:05,886 INFO L82 PathProgramCache]: Analyzing trace with hash -797989467, now seen corresponding path program 1 times [2020-08-27 22:01:05,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:01:05,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636688010] [2020-08-27 22:01:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:01:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:05,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:01:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:01:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:01:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:01:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:01:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:01:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:01:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-27 22:01:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-27 22:01:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-27 22:01:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-27 22:01:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-27 22:01:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-08-27 22:01:06,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636688010] [2020-08-27 22:01:06,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 22:01:06,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-27 22:01:06,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010453509] [2020-08-27 22:01:06,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:01:06,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:01:06,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:01:06,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:01:06,237 INFO L87 Difference]: Start difference. First operand 1488 states and 1728 transitions. Second operand 10 states. [2020-08-27 22:01:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:08,248 INFO L93 Difference]: Finished difference Result 3478 states and 4131 transitions. [2020-08-27 22:01:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-27 22:01:08,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-08-27 22:01:08,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:08,256 INFO L225 Difference]: With dead ends: 3478 [2020-08-27 22:01:08,256 INFO L226 Difference]: Without dead ends: 1006 [2020-08-27 22:01:08,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2020-08-27 22:01:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2020-08-27 22:01:08,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 970. [2020-08-27 22:01:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-08-27 22:01:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1098 transitions. [2020-08-27 22:01:08,365 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1098 transitions. Word has length 176 [2020-08-27 22:01:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:08,366 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 1098 transitions. [2020-08-27 22:01:08,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:01:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1098 transitions. [2020-08-27 22:01:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-27 22:01:08,369 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:01:08,369 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:01:08,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-27 22:01:08,370 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:01:08,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:01:08,370 INFO L82 PathProgramCache]: Analyzing trace with hash -421514357, now seen corresponding path program 1 times [2020-08-27 22:01:08,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:01:08,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343807806] [2020-08-27 22:01:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:01:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:01:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:01:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-27 22:01:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-27 22:01:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-27 22:01:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:01:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 22:01:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-27 22:01:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-27 22:01:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-27 22:01:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-27 22:01:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-27 22:01:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:01:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-27 22:01:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-08-27 22:01:08,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343807806] [2020-08-27 22:01:08,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 22:01:08,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-27 22:01:08,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193955625] [2020-08-27 22:01:08,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-27 22:01:08,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:01:08,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-27 22:01:08,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-08-27 22:01:08,808 INFO L87 Difference]: Start difference. First operand 970 states and 1098 transitions. Second operand 12 states. [2020-08-27 22:01:11,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:11,360 INFO L93 Difference]: Finished difference Result 1204 states and 1390 transitions. [2020-08-27 22:01:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-27 22:01:11,360 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2020-08-27 22:01:11,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:11,362 INFO L225 Difference]: With dead ends: 1204 [2020-08-27 22:01:11,362 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 22:01:11,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2020-08-27 22:01:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 22:01:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 22:01:11,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 22:01:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 22:01:11,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-08-27 22:01:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:11,367 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 22:01:11,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-27 22:01:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 22:01:11,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 22:01:11,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-27 22:01:11,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 22:01:14,043 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 116 [2020-08-27 22:01:14,462 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 116 [2020-08-27 22:01:14,876 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 116 [2020-08-27 22:01:15,245 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 116 [2020-08-27 22:01:15,641 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 116 [2020-08-27 22:01:15,944 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 74 [2020-08-27 22:01:16,077 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-08-27 22:01:16,267 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 74 [2020-08-27 22:01:16,428 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2020-08-27 22:01:16,587 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2020-08-27 22:01:16,747 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2020-08-27 22:01:16,919 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2020-08-27 22:01:17,043 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-08-27 22:01:17,224 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2020-08-27 22:01:17,352 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-08-27 22:01:17,542 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-08-27 22:01:17,727 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-08-27 22:01:18,555 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2020-08-27 22:01:19,324 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-08-27 22:01:19,571 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2020-08-27 22:01:20,045 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-08-27 22:01:21,169 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-08-27 22:01:21,348 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-08-27 22:01:21,716 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2020-08-27 22:01:22,456 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-08-27 22:01:23,403 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-08-27 22:01:23,850 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2020-08-27 22:01:27,197 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-08-27 22:01:27,864 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-08-27 22:01:28,194 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-08-27 22:01:28,306 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-08-27 22:01:28,416 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-08-27 22:01:28,526 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-08-27 22:01:28,835 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-08-27 22:01:28,960 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2020-08-27 22:01:29,571 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-08-27 22:01:29,745 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2020-08-27 22:01:29,876 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-08-27 22:01:30,199 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-08-27 22:01:30,751 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 116 [2020-08-27 22:01:30,983 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:31,161 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-08-27 22:01:31,349 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-08-27 22:01:31,470 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:31,648 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-08-27 22:01:31,884 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-08-27 22:01:32,006 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:32,189 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-08-27 22:01:32,311 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:32,432 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:32,551 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:32,669 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:32,792 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:32,911 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:33,032 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:33,224 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-08-27 22:01:33,406 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-08-27 22:01:33,574 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-08-27 22:01:33,731 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2020-08-27 22:01:33,966 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-08-27 22:01:34,170 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:34,374 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:34,578 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:34,697 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:34,819 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:34,983 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-08-27 22:01:35,178 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-08-27 22:01:35,385 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2020-08-27 22:01:35,552 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-08-27 22:01:35,670 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:35,789 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:35,911 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:36,032 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:36,216 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2020-08-27 22:01:36,337 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:36,455 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:36,662 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-08-27 22:01:36,823 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-08-27 22:01:37,024 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:37,251 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2020-08-27 22:01:37,418 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-08-27 22:01:37,591 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2020-08-27 22:01:37,764 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-08-27 22:01:37,978 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-08-27 22:01:38,103 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:38,220 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:38,406 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-08-27 22:01:39,525 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:39,704 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-08-27 22:01:39,881 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-08-27 22:01:40,000 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:40,177 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-08-27 22:01:40,433 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-08-27 22:01:40,555 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:40,741 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-08-27 22:01:40,862 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:40,984 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:41,102 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:41,221 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:41,343 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:41,460 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:41,583 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:41,773 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-08-27 22:01:41,941 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-08-27 22:01:42,108 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-08-27 22:01:42,265 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2020-08-27 22:01:42,501 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-08-27 22:01:42,703 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:42,908 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:43,111 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-08-27 22:01:43,230 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-08-27 22:01:43,353 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-08-27 22:01:43,522 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2020-08-27 22:01:43,731 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-08-27 22:01:43,938 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84