/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:09:59,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:09:59,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:09:59,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:09:59,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:09:59,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:09:59,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:09:59,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:09:59,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:09:59,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:09:59,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:09:59,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:09:59,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:09:59,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:09:59,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:09:59,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:09:59,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:09:59,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:09:59,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:09:59,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:09:59,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:09:59,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:09:59,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:09:59,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:09:59,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:09:59,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:09:59,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:09:59,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:09:59,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:09:59,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:09:59,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:09:59,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:09:59,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:09:59,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:09:59,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:09:59,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:09:59,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:09:59,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:09:59,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:09:59,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:09:59,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:09:59,346 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 [2020-09-24 15:09:59,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:09:59,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:09:59,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:09:59,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:09:59,376 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:09:59,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:09:59,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:09:59,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:09:59,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:09:59,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:09:59,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:09:59,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:09:59,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:09:59,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:09:59,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:09:59,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:09:59,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:09:59,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:09:59,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:09:59,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:09:59,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:09:59,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:09:59,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:09:59,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:09:59,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:09:59,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:09:59,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:09:59,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:09:59,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:09:59,391 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.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 15:09:59,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:09:59,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:09:59,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:09:59,940 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:09:59,940 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:09:59,942 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-09-24 15:10:00,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72d9cda9f/123e4d05c3e74bd98deeb34d4de9ceb3/FLAGfd5b69759 [2020-09-24 15:10:00,600 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:10:00,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-09-24 15:10:00,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72d9cda9f/123e4d05c3e74bd98deeb34d4de9ceb3/FLAGfd5b69759 [2020-09-24 15:10:00,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72d9cda9f/123e4d05c3e74bd98deeb34d4de9ceb3 [2020-09-24 15:10:00,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:10:00,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:10:00,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:10:00,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:10:00,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:10:00,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:10:00" (1/1) ... [2020-09-24 15:10:00,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c6f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:00, skipping insertion in model container [2020-09-24 15:10:00,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:10:00" (1/1) ... [2020-09-24 15:10:00,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:10:01,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:10:01,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:10:01,351 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:10:01,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:10:01,508 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:10:01,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01 WrapperNode [2020-09-24 15:10:01,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:10:01,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:10:01,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:10:01,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:10:01,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (1/1) ... [2020-09-24 15:10:01,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:10:01,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:10:01,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:10:01,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:10:01,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (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 [2020-09-24 15:10:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:10:01,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:10:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-24 15:10:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-24 15:10:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-24 15:10:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-24 15:10:01,643 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-24 15:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-24 15:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-24 15:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-24 15:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-24 15:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-24 15:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-24 15:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-24 15:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-24 15:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-24 15:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-24 15:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-24 15:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-24 15:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-24 15:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-24 15:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-24 15:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:10:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:10:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:10:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-24 15:10:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-24 15:10:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-24 15:10:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-24 15:10:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-24 15:10:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-24 15:10:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-24 15:10:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:10:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:10:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:10:02,292 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:10:02,292 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 15:10:02,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:10:02 BoogieIcfgContainer [2020-09-24 15:10:02,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:10:02,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:10:02,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:10:02,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:10:02,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:10:00" (1/3) ... [2020-09-24 15:10:02,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62185828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:10:02, skipping insertion in model container [2020-09-24 15:10:02,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:10:01" (2/3) ... [2020-09-24 15:10:02,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62185828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:10:02, skipping insertion in model container [2020-09-24 15:10:02,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:10:02" (3/3) ... [2020-09-24 15:10:02,311 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.02.cil.c [2020-09-24 15:10:02,325 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:10:02,337 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:10:02,362 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:10:02,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:10:02,399 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:10:02,399 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:10:02,399 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:10:02,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:10:02,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:10:02,400 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:10:02,400 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:10:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states. [2020-09-24 15:10:02,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-24 15:10:02,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:02,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:02,451 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:02,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1383476838, now seen corresponding path program 1 times [2020-09-24 15:10:02,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:02,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005074660] [2020-09-24 15:10:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:02,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:02,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:02,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:02,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:03,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005074660] [2020-09-24 15:10:03,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:03,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:10:03,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484383060] [2020-09-24 15:10:03,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:10:03,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:03,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:10:03,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:10:03,145 INFO L87 Difference]: Start difference. First operand 257 states. Second operand 7 states. [2020-09-24 15:10:06,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:06,358 INFO L93 Difference]: Finished difference Result 946 states and 1320 transitions. [2020-09-24 15:10:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:10:06,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-09-24 15:10:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:06,393 INFO L225 Difference]: With dead ends: 946 [2020-09-24 15:10:06,393 INFO L226 Difference]: Without dead ends: 707 [2020-09-24 15:10:06,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:10:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-09-24 15:10:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 472. [2020-09-24 15:10:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-09-24 15:10:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 597 transitions. [2020-09-24 15:10:06,566 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 597 transitions. Word has length 127 [2020-09-24 15:10:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:06,570 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 597 transitions. [2020-09-24 15:10:06,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:10:06,571 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 597 transitions. [2020-09-24 15:10:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-24 15:10:06,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:06,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:06,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:10:06,591 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:06,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:06,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1691024482, now seen corresponding path program 1 times [2020-09-24 15:10:06,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:06,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160850704] [2020-09-24 15:10:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:06,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160850704] [2020-09-24 15:10:06,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:06,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:10:06,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090174826] [2020-09-24 15:10:06,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:10:06,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:06,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:10:06,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:10:06,934 INFO L87 Difference]: Start difference. First operand 472 states and 597 transitions. Second operand 8 states. [2020-09-24 15:10:08,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:08,681 INFO L93 Difference]: Finished difference Result 1128 states and 1479 transitions. [2020-09-24 15:10:08,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:10:08,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-09-24 15:10:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:08,692 INFO L225 Difference]: With dead ends: 1128 [2020-09-24 15:10:08,692 INFO L226 Difference]: Without dead ends: 700 [2020-09-24 15:10:08,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:10:08,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-24 15:10:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 460. [2020-09-24 15:10:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-09-24 15:10:08,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 578 transitions. [2020-09-24 15:10:08,757 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 578 transitions. Word has length 128 [2020-09-24 15:10:08,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:08,757 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 578 transitions. [2020-09-24 15:10:08,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:10:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 578 transitions. [2020-09-24 15:10:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-24 15:10:08,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:08,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:08,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:10:08,761 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:08,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:08,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2002481605, now seen corresponding path program 1 times [2020-09-24 15:10:08,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:08,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498788766] [2020-09-24 15:10:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:10:09,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498788766] [2020-09-24 15:10:09,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:09,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:10:09,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231466034] [2020-09-24 15:10:09,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:10:09,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:09,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:10:09,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:10:09,014 INFO L87 Difference]: Start difference. First operand 460 states and 578 transitions. Second operand 7 states. [2020-09-24 15:10:11,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:11,427 INFO L93 Difference]: Finished difference Result 1752 states and 2439 transitions. [2020-09-24 15:10:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:10:11,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-09-24 15:10:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:11,442 INFO L225 Difference]: With dead ends: 1752 [2020-09-24 15:10:11,442 INFO L226 Difference]: Without dead ends: 1336 [2020-09-24 15:10:11,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:10:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2020-09-24 15:10:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 947. [2020-09-24 15:10:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2020-09-24 15:10:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1238 transitions. [2020-09-24 15:10:11,539 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1238 transitions. Word has length 132 [2020-09-24 15:10:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:11,540 INFO L479 AbstractCegarLoop]: Abstraction has 947 states and 1238 transitions. [2020-09-24 15:10:11,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:10:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1238 transitions. [2020-09-24 15:10:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-24 15:10:11,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:11,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:11,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:10:11,545 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:11,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:11,546 INFO L82 PathProgramCache]: Analyzing trace with hash 537882589, now seen corresponding path program 1 times [2020-09-24 15:10:11,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:11,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607595659] [2020-09-24 15:10:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:10:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:10:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 15:10:11,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607595659] [2020-09-24 15:10:11,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:11,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:10:11,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789274829] [2020-09-24 15:10:11,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:10:11,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:11,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:10:11,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:10:11,814 INFO L87 Difference]: Start difference. First operand 947 states and 1238 transitions. Second operand 8 states. [2020-09-24 15:10:14,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:14,872 INFO L93 Difference]: Finished difference Result 3722 states and 5501 transitions. [2020-09-24 15:10:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:10:14,872 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-09-24 15:10:14,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:14,896 INFO L225 Difference]: With dead ends: 3722 [2020-09-24 15:10:14,897 INFO L226 Difference]: Without dead ends: 2820 [2020-09-24 15:10:14,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2020-09-24 15:10:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-09-24 15:10:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2091. [2020-09-24 15:10:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-09-24 15:10:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2967 transitions. [2020-09-24 15:10:15,085 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2967 transitions. Word has length 165 [2020-09-24 15:10:15,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:15,086 INFO L479 AbstractCegarLoop]: Abstraction has 2091 states and 2967 transitions. [2020-09-24 15:10:15,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:10:15,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2967 transitions. [2020-09-24 15:10:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 15:10:15,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:15,099 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:15,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:10:15,099 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:15,100 INFO L82 PathProgramCache]: Analyzing trace with hash 755814652, now seen corresponding path program 1 times [2020-09-24 15:10:15,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:15,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545915408] [2020-09-24 15:10:15,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:10:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:10:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:10:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 15:10:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-24 15:10:15,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545915408] [2020-09-24 15:10:15,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:10:15,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:10:15,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821034594] [2020-09-24 15:10:15,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:10:15,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:15,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:10:15,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:10:15,564 INFO L87 Difference]: Start difference. First operand 2091 states and 2967 transitions. Second operand 12 states. [2020-09-24 15:10:21,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:21,247 INFO L93 Difference]: Finished difference Result 8991 states and 15078 transitions. [2020-09-24 15:10:21,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 15:10:21,247 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 230 [2020-09-24 15:10:21,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:21,308 INFO L225 Difference]: With dead ends: 8991 [2020-09-24 15:10:21,308 INFO L226 Difference]: Without dead ends: 6948 [2020-09-24 15:10:21,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2020-09-24 15:10:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2020-09-24 15:10:21,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 4943. [2020-09-24 15:10:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4943 states. [2020-09-24 15:10:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7731 transitions. [2020-09-24 15:10:21,789 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7731 transitions. Word has length 230 [2020-09-24 15:10:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:21,790 INFO L479 AbstractCegarLoop]: Abstraction has 4943 states and 7731 transitions. [2020-09-24 15:10:21,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:10:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7731 transitions. [2020-09-24 15:10:21,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 15:10:21,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:21,799 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:21,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:10:21,800 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:21,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:21,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1577887462, now seen corresponding path program 1 times [2020-09-24 15:10:21,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:21,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544183682] [2020-09-24 15:10:21,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:21,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:10:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:10:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:10:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:10:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:22,157 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-09-24 15:10:22,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544183682] [2020-09-24 15:10:22,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:22,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:10:22,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442530251] [2020-09-24 15:10:22,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:10:22,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:22,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:10:22,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:10:22,162 INFO L87 Difference]: Start difference. First operand 4943 states and 7731 transitions. Second operand 9 states. [2020-09-24 15:10:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:26,168 INFO L93 Difference]: Finished difference Result 14902 states and 25159 transitions. [2020-09-24 15:10:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 15:10:26,169 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2020-09-24 15:10:26,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:26,247 INFO L225 Difference]: With dead ends: 14902 [2020-09-24 15:10:26,247 INFO L226 Difference]: Without dead ends: 10009 [2020-09-24 15:10:26,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2020-09-24 15:10:26,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2020-09-24 15:10:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 8124. [2020-09-24 15:10:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8124 states. [2020-09-24 15:10:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8124 states to 8124 states and 13044 transitions. [2020-09-24 15:10:27,137 INFO L78 Accepts]: Start accepts. Automaton has 8124 states and 13044 transitions. Word has length 226 [2020-09-24 15:10:27,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:27,138 INFO L479 AbstractCegarLoop]: Abstraction has 8124 states and 13044 transitions. [2020-09-24 15:10:27,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:10:27,139 INFO L276 IsEmpty]: Start isEmpty. Operand 8124 states and 13044 transitions. [2020-09-24 15:10:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-24 15:10:27,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:27,175 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:27,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:10:27,176 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:27,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:27,177 INFO L82 PathProgramCache]: Analyzing trace with hash 550596668, now seen corresponding path program 1 times [2020-09-24 15:10:27,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:27,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945203367] [2020-09-24 15:10:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:10:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 15:10:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 15:10:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:10:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-09-24 15:10:27,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945203367] [2020-09-24 15:10:27,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:27,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:10:27,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823702819] [2020-09-24 15:10:27,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:10:27,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:27,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:10:27,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:10:27,592 INFO L87 Difference]: Start difference. First operand 8124 states and 13044 transitions. Second operand 11 states. [2020-09-24 15:10:27,814 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-09-24 15:10:30,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:30,576 INFO L93 Difference]: Finished difference Result 18545 states and 29578 transitions. [2020-09-24 15:10:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 15:10:30,577 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 279 [2020-09-24 15:10:30,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:30,639 INFO L225 Difference]: With dead ends: 18545 [2020-09-24 15:10:30,639 INFO L226 Difference]: Without dead ends: 10470 [2020-09-24 15:10:30,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:10:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2020-09-24 15:10:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8112. [2020-09-24 15:10:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8112 states. [2020-09-24 15:10:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8112 states to 8112 states and 13019 transitions. [2020-09-24 15:10:31,257 INFO L78 Accepts]: Start accepts. Automaton has 8112 states and 13019 transitions. Word has length 279 [2020-09-24 15:10:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:31,257 INFO L479 AbstractCegarLoop]: Abstraction has 8112 states and 13019 transitions. [2020-09-24 15:10:31,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:10:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8112 states and 13019 transitions. [2020-09-24 15:10:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 15:10:31,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:31,275 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:31,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:10:31,275 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:31,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1697090985, now seen corresponding path program 1 times [2020-09-24 15:10:31,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:31,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215809065] [2020-09-24 15:10:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:31,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:31,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:31,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:10:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:10:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 15:10:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-24 15:10:32,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215809065] [2020-09-24 15:10:32,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:32,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:10:32,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844014359] [2020-09-24 15:10:32,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:10:32,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:32,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:10:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:10:32,191 INFO L87 Difference]: Start difference. First operand 8112 states and 13019 transitions. Second operand 10 states. [2020-09-24 15:10:35,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:35,180 INFO L93 Difference]: Finished difference Result 18146 states and 29108 transitions. [2020-09-24 15:10:35,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:10:35,181 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-09-24 15:10:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:35,258 INFO L225 Difference]: With dead ends: 18146 [2020-09-24 15:10:35,258 INFO L226 Difference]: Without dead ends: 10076 [2020-09-24 15:10:35,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:10:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2020-09-24 15:10:36,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 8104. [2020-09-24 15:10:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8104 states. [2020-09-24 15:10:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8104 states to 8104 states and 13004 transitions. [2020-09-24 15:10:36,131 INFO L78 Accepts]: Start accepts. Automaton has 8104 states and 13004 transitions. Word has length 220 [2020-09-24 15:10:36,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:36,132 INFO L479 AbstractCegarLoop]: Abstraction has 8104 states and 13004 transitions. [2020-09-24 15:10:36,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:10:36,132 INFO L276 IsEmpty]: Start isEmpty. Operand 8104 states and 13004 transitions. [2020-09-24 15:10:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 15:10:36,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:36,146 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:36,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:10:36,146 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:36,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1424066057, now seen corresponding path program 1 times [2020-09-24 15:10:36,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:36,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339241792] [2020-09-24 15:10:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:10:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:10:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 15:10:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-24 15:10:36,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339241792] [2020-09-24 15:10:36,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:36,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:10:36,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728962640] [2020-09-24 15:10:36,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:10:36,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:36,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:10:36,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:10:36,662 INFO L87 Difference]: Start difference. First operand 8104 states and 13004 transitions. Second operand 10 states. [2020-09-24 15:10:36,857 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-09-24 15:10:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:40,105 INFO L93 Difference]: Finished difference Result 20699 states and 35038 transitions. [2020-09-24 15:10:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 15:10:40,105 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2020-09-24 15:10:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:40,163 INFO L225 Difference]: With dead ends: 20699 [2020-09-24 15:10:40,163 INFO L226 Difference]: Without dead ends: 12638 [2020-09-24 15:10:40,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:10:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12638 states. [2020-09-24 15:10:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12638 to 10350. [2020-09-24 15:10:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10350 states. [2020-09-24 15:10:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10350 states to 10350 states and 16012 transitions. [2020-09-24 15:10:40,798 INFO L78 Accepts]: Start accepts. Automaton has 10350 states and 16012 transitions. Word has length 220 [2020-09-24 15:10:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:40,799 INFO L479 AbstractCegarLoop]: Abstraction has 10350 states and 16012 transitions. [2020-09-24 15:10:40,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:10:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10350 states and 16012 transitions. [2020-09-24 15:10:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 15:10:40,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:40,810 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:40,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:10:40,811 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:40,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:40,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1439116596, now seen corresponding path program 1 times [2020-09-24 15:10:40,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:40,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097577727] [2020-09-24 15:10:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:10:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:10:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:40,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 15:10:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:41,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:41,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:41,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:41,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-09-24 15:10:41,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097577727] [2020-09-24 15:10:41,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:41,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 15:10:41,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039907135] [2020-09-24 15:10:41,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:10:41,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:41,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:10:41,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:10:41,143 INFO L87 Difference]: Start difference. First operand 10350 states and 16012 transitions. Second operand 12 states. [2020-09-24 15:10:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:44,483 INFO L93 Difference]: Finished difference Result 22667 states and 35758 transitions. [2020-09-24 15:10:44,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 15:10:44,483 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2020-09-24 15:10:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:44,527 INFO L225 Difference]: With dead ends: 22667 [2020-09-24 15:10:44,527 INFO L226 Difference]: Without dead ends: 9475 [2020-09-24 15:10:44,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-09-24 15:10:44,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9475 states. [2020-09-24 15:10:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9475 to 7824. [2020-09-24 15:10:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7824 states. [2020-09-24 15:10:45,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7824 states to 7824 states and 11208 transitions. [2020-09-24 15:10:45,165 INFO L78 Accepts]: Start accepts. Automaton has 7824 states and 11208 transitions. Word has length 220 [2020-09-24 15:10:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:45,166 INFO L479 AbstractCegarLoop]: Abstraction has 7824 states and 11208 transitions. [2020-09-24 15:10:45,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:10:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7824 states and 11208 transitions. [2020-09-24 15:10:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 15:10:45,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:45,180 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:45,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:10:45,181 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:45,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:45,181 INFO L82 PathProgramCache]: Analyzing trace with hash 219517836, now seen corresponding path program 1 times [2020-09-24 15:10:45,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:45,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582548795] [2020-09-24 15:10:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 15:10:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:10:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:10:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 15:10:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 15:10:45,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582548795] [2020-09-24 15:10:45,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:10:45,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:10:45,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593323094] [2020-09-24 15:10:45,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:10:45,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:45,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:10:45,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:10:45,507 INFO L87 Difference]: Start difference. First operand 7824 states and 11208 transitions. Second operand 10 states. [2020-09-24 15:10:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:10:50,236 INFO L93 Difference]: Finished difference Result 24720 states and 38989 transitions. [2020-09-24 15:10:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 15:10:50,236 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-24 15:10:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:10:50,303 INFO L225 Difference]: With dead ends: 24720 [2020-09-24 15:10:50,303 INFO L226 Difference]: Without dead ends: 16939 [2020-09-24 15:10:50,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 15:10:50,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16939 states. [2020-09-24 15:10:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16939 to 14239. [2020-09-24 15:10:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14239 states. [2020-09-24 15:10:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14239 states to 14239 states and 20157 transitions. [2020-09-24 15:10:51,204 INFO L78 Accepts]: Start accepts. Automaton has 14239 states and 20157 transitions. Word has length 230 [2020-09-24 15:10:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:10:51,205 INFO L479 AbstractCegarLoop]: Abstraction has 14239 states and 20157 transitions. [2020-09-24 15:10:51,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:10:51,205 INFO L276 IsEmpty]: Start isEmpty. Operand 14239 states and 20157 transitions. [2020-09-24 15:10:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-24 15:10:51,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:10:51,234 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:10:51,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:10:51,234 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:10:51,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:10:51,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1575682267, now seen corresponding path program 1 times [2020-09-24 15:10:51,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:10:51,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324044199] [2020-09-24 15:10:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:10:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:10:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 15:10:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 15:10:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 15:10:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 15:10:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 15:10:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:10:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:10:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:10:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 15:10:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 15:10:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:10:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 15:10:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 15:10:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:10:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 15:10:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 15:10:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 15:10:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:10:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-24 15:10:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:10:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-09-24 15:10:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:10:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 39 proven. 9 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-09-24 15:10:51,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324044199] [2020-09-24 15:10:51,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:10:51,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:10:51,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366275003] [2020-09-24 15:10:51,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:10:51,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:10:51,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:10:51,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:10:51,573 INFO L87 Difference]: Start difference. First operand 14239 states and 20157 transitions. Second operand 12 states.