/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:31:14,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:31:14,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:31:14,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:31:14,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:31:14,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:31:14,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:31:14,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:31:14,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:31:14,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:31:14,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:31:14,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:31:14,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:31:14,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:31:14,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:31:14,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:31:14,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:31:14,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:31:14,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:31:14,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:31:14,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:31:14,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:31:14,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:31:14,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:31:14,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:31:14,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:31:14,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:31:14,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:31:14,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:31:14,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:31:14,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:31:14,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:31:14,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:31:14,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:31:14,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:31:14,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:31:14,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:31:14,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:31:14,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:31:14,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:31:14,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:31:14,555 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 [2020-09-21 10:31:14,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:31:14,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:31:14,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:31:14,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:31:14,606 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:31:14,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:31:14,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:31:14,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:31:14,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:31:14,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:31:14,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:31:14,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:31:14,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:31:14,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:31:14,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:31:14,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:31:14,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:31:14,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:31:14,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:31:14,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:31:14,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:31:14,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:31:14,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:31:14,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:31:14,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:31:14,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:31:14,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:31:14,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:31:14,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:31:14,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-21 10:31:15,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:31:15,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:31:15,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:31:15,134 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:31:15,134 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:31:15,135 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-09-21 10:31:15,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a80b89d37/07928ca33b6a404c9005ea31e947e036/FLAGcf534bc00 [2020-09-21 10:31:15,795 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:31:15,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-09-21 10:31:15,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a80b89d37/07928ca33b6a404c9005ea31e947e036/FLAGcf534bc00 [2020-09-21 10:31:16,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a80b89d37/07928ca33b6a404c9005ea31e947e036 [2020-09-21 10:31:16,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:31:16,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:31:16,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:31:16,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:31:16,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:31:16,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217a2c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16, skipping insertion in model container [2020-09-21 10:31:16,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:31:16,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:31:16,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:31:16,638 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:31:16,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:31:16,835 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:31:16,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16 WrapperNode [2020-09-21 10:31:16,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:31:16,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:31:16,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:31:16,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:31:16,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (1/1) ... [2020-09-21 10:31:16,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:31:16,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:31:16,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:31:16,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:31:16,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (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 [2020-09-21 10:31:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:31:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:31:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 10:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-21 10:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-21 10:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-09-21 10:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-09-21 10:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-09-21 10:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-09-21 10:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-09-21 10:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-09-21 10:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-09-21 10:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-09-21 10:31:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-09-21 10:31:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-09-21 10:31:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-09-21 10:31:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-09-21 10:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-09-21 10:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-09-21 10:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-09-21 10:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-09-21 10:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-09-21 10:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-09-21 10:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-21 10:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 10:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:31:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:31:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-09-21 10:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-09-21 10:31:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-09-21 10:31:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-09-21 10:31:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-09-21 10:31:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-09-21 10:31:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-09-21 10:31:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-09-21 10:31:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-09-21 10:31:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-21 10:31:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-21 10:31:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-21 10:31:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-09-21 10:31:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-09-21 10:31:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-09-21 10:31:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-09-21 10:31:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-09-21 10:31:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-09-21 10:31:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-09-21 10:31:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-09-21 10:31:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-09-21 10:31:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-09-21 10:31:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-09-21 10:31:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-09-21 10:31:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-21 10:31:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 10:31:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 10:31:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 10:31:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-21 10:31:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-21 10:31:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-21 10:31:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-21 10:31:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-21 10:31:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 10:31:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 10:31:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 10:31:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:31:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:31:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:31:18,172 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:31:18,172 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-09-21 10:31:18,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:31:18 BoogieIcfgContainer [2020-09-21 10:31:18,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:31:18,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:31:18,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:31:18,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:31:18,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:31:16" (1/3) ... [2020-09-21 10:31:18,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f313ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:31:18, skipping insertion in model container [2020-09-21 10:31:18,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:16" (2/3) ... [2020-09-21 10:31:18,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f313ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:31:18, skipping insertion in model container [2020-09-21 10:31:18,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:31:18" (3/3) ... [2020-09-21 10:31:18,197 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-09-21 10:31:18,209 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:31:18,226 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:31:18,246 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:31:18,280 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:31:18,280 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:31:18,280 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:31:18,281 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:31:18,281 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:31:18,281 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:31:18,281 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:31:18,281 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:31:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-09-21 10:31:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 10:31:18,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:18,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:18,336 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-09-21 10:31:18,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:18,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173173535] [2020-09-21 10:31:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,246 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-21 10:31:19,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:31:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:31:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-21 10:31:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-21 10:31:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:19,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173173535] [2020-09-21 10:31:19,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:19,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:31:19,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888807082] [2020-09-21 10:31:19,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:31:19,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:19,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:31:19,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:31:19,883 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-09-21 10:31:20,248 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-21 10:31:20,397 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-09-21 10:31:20,693 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-21 10:31:20,893 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:31:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:29,437 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-09-21 10:31:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:31:29,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-09-21 10:31:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:29,467 INFO L225 Difference]: With dead ends: 1306 [2020-09-21 10:31:29,468 INFO L226 Difference]: Without dead ends: 810 [2020-09-21 10:31:29,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-21 10:31:29,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-09-21 10:31:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-09-21 10:31:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-09-21 10:31:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-09-21 10:31:29,676 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-09-21 10:31:29,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:29,677 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-09-21 10:31:29,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:31:29,677 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-09-21 10:31:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 10:31:29,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:29,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:29,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:31:29,693 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:29,694 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-09-21 10:31:29,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:29,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602400244] [2020-09-21 10:31:29,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,096 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-21 10:31:30,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:31:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:31:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-21 10:31:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-21 10:31:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:30,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602400244] [2020-09-21 10:31:30,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:30,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:31:30,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935196034] [2020-09-21 10:31:30,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:31:30,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:30,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:31:30,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:31:30,567 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-09-21 10:31:30,891 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-21 10:31:31,065 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-09-21 10:31:31,431 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-21 10:31:31,656 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:31:38,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:38,622 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-09-21 10:31:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:31:38,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-09-21 10:31:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:38,631 INFO L225 Difference]: With dead ends: 1277 [2020-09-21 10:31:38,631 INFO L226 Difference]: Without dead ends: 810 [2020-09-21 10:31:38,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-09-21 10:31:38,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-09-21 10:31:38,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-09-21 10:31:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-09-21 10:31:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-09-21 10:31:38,760 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-09-21 10:31:38,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:38,761 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-09-21 10:31:38,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:31:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-09-21 10:31:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 10:31:38,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:38,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:38,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:31:38,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:38,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:38,767 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-09-21 10:31:38,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:38,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445848461] [2020-09-21 10:31:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,206 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-21 10:31:39,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:31:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:31:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-21 10:31:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-21 10:31:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:39,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445848461] [2020-09-21 10:31:39,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:39,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 10:31:39,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130952263] [2020-09-21 10:31:39,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 10:31:39,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:39,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 10:31:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 10:31:39,603 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-09-21 10:31:39,911 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-21 10:31:40,076 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:31:40,316 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:31:48,092 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-21 10:31:48,318 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-09-21 10:31:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:54,190 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-09-21 10:31:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 10:31:54,191 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-09-21 10:31:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:54,202 INFO L225 Difference]: With dead ends: 1991 [2020-09-21 10:31:54,202 INFO L226 Difference]: Without dead ends: 1532 [2020-09-21 10:31:54,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:31:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-09-21 10:31:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-09-21 10:31:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-09-21 10:31:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-09-21 10:31:54,366 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-09-21 10:31:54,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:54,367 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-09-21 10:31:54,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 10:31:54,367 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-09-21 10:31:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 10:31:54,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:54,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:31:54,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:31:54,372 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:54,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-09-21 10:31:54,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:54,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104195323] [2020-09-21 10:31:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:54,800 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-21 10:31:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:54,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:54,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:54,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:31:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:31:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:31:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:31:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:31:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:31:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:31:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:31:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:31:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:31:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:31:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:31:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:31:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:31:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:31:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-21 10:31:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-21 10:31:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:55,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104195323] [2020-09-21 10:31:55,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:55,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:31:55,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835479420] [2020-09-21 10:31:55,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:31:55,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:55,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:31:55,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:31:55,444 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-09-21 10:31:55,851 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-21 10:31:56,044 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:31:56,233 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:32:04,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:32:04,811 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-09-21 10:32:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:32:04,812 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-09-21 10:32:04,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:32:04,824 INFO L225 Difference]: With dead ends: 2455 [2020-09-21 10:32:04,825 INFO L226 Difference]: Without dead ends: 1521 [2020-09-21 10:32:04,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-21 10:32:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-09-21 10:32:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-09-21 10:32:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-09-21 10:32:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-09-21 10:32:04,979 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-09-21 10:32:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:32:04,979 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-09-21 10:32:04,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:32:04,980 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-09-21 10:32:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 10:32:04,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:32:04,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:32:04,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:32:04,984 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:32:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:32:04,984 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-09-21 10:32:04,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:32:04,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616485791] [2020-09-21 10:32:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:32:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,399 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-21 10:32:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:32:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:32:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:32:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:32:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:32:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:32:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:32:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:32:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:32:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:32:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:32:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:32:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:32:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:32:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:32:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:32:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:32:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:32:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:32:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:32:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-21 10:32:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-21 10:32:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:05,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:32:05,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616485791] [2020-09-21 10:32:05,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:32:05,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:32:05,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485882171] [2020-09-21 10:32:05,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:32:05,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:32:05,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:32:05,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:32:05,806 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-09-21 10:32:06,126 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-21 10:32:06,301 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:32:06,532 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-09-21 10:32:13,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:32:13,315 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-09-21 10:32:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:32:13,316 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-09-21 10:32:13,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:32:13,325 INFO L225 Difference]: With dead ends: 2451 [2020-09-21 10:32:13,325 INFO L226 Difference]: Without dead ends: 1517 [2020-09-21 10:32:13,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-21 10:32:13,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-09-21 10:32:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-09-21 10:32:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-09-21 10:32:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-09-21 10:32:13,498 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-09-21 10:32:13,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:32:13,498 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-09-21 10:32:13,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:32:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-09-21 10:32:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-21 10:32:13,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:32:13,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:32:13,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:32:13,502 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:32:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:32:13,503 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-09-21 10:32:13,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:32:13,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047292457] [2020-09-21 10:32:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:32:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:13,936 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-21 10:32:13,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:32:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:32:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:32:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 10:32:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:32:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:32:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:32:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:32:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:32:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:32:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:32:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 10:32:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 10:32:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:32:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 10:32:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 10:32:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 10:32:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:32:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:32:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 10:32:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-21 10:32:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-21 10:32:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:32:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:32:14,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047292457] [2020-09-21 10:32:14,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:32:14,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:32:14,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342765424] [2020-09-21 10:32:14,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:32:14,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:32:14,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:32:14,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:32:14,365 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states.