/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:57:38,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:57:38,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:57:38,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:57:38,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:57:38,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:57:38,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:57:38,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:57:38,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:57:38,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:57:38,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:57:38,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:57:38,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:57:38,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:57:38,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:57:38,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:57:38,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:57:38,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:57:38,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:57:38,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:57:38,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:57:38,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:57:38,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:57:38,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:57:38,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:57:38,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:57:38,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:57:38,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:57:38,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:57:38,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:57:38,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:57:38,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:57:38,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:57:38,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:57:38,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:57:38,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:57:38,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:57:38,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:57:38,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:57:38,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:57:38,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:57:38,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:57:38,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:57:38,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:57:38,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:57:38,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:57:38,731 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:57:38,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:57:38,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:57:38,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:57:38,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:57:38,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:57:38,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:57:38,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:57:38,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:57:38,733 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:57:38,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:57:38,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:57:38,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:57:38,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:57:38,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:57:38,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:57:38,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:57:38,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:57:38,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:57:38,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:57:38,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:57:38,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:57:38,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:57:38,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:57:38,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:57:38,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:57:39,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:57:39,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:57:39,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:57:39,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:57:39,171 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:57:39,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-10-23 18:57:39,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa551d4b1/00063bebb9db44aca2d88a3b000ea0bb/FLAGb9822764c [2020-10-23 18:57:40,129 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:57:40,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-10-23 18:57:40,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa551d4b1/00063bebb9db44aca2d88a3b000ea0bb/FLAGb9822764c [2020-10-23 18:57:40,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa551d4b1/00063bebb9db44aca2d88a3b000ea0bb [2020-10-23 18:57:40,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:57:40,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:57:40,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:57:40,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:57:40,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:57:40,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:57:40" (1/1) ... [2020-10-23 18:57:40,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f90f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:40, skipping insertion in model container [2020-10-23 18:57:40,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:57:40" (1/1) ... [2020-10-23 18:57:40,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:57:40,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:57:40,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:57:40,995 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:57:41,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:57:41,286 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:57:41,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41 WrapperNode [2020-10-23 18:57:41,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:57:41,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:57:41,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:57:41,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:57:41,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... [2020-10-23 18:57:41,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:57:41,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:57:41,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:57:41,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:57:41,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:57:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:57:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:57:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:57:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-23 18:57:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-23 18:57:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-23 18:57:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-10-23 18:57:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-10-23 18:57:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-10-23 18:57:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-10-23 18:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-10-23 18:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-10-23 18:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-10-23 18:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-10-23 18:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-10-23 18:57:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-10-23 18:57:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-10-23 18:57:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-10-23 18:57:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-23 18:57:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-23 18:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-10-23 18:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-10-23 18:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-10-23 18:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-10-23 18:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-10-23 18:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-10-23 18:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-10-23 18:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-10-23 18:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-10-23 18:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-10-23 18:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-10-23 18:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-10-23 18:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-23 18:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-23 18:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-23 18:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-23 18:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-23 18:57:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-23 18:57:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-23 18:57:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-23 18:57:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-23 18:57:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-23 18:57:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-23 18:57:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-23 18:57:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-23 18:57:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:57:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:57:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:57:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:57:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:57:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:57:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-23 18:57:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-23 18:57:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-23 18:57:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-10-23 18:57:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-10-23 18:57:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-10-23 18:57:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-10-23 18:57:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-10-23 18:57:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-10-23 18:57:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-10-23 18:57:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-10-23 18:57:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-10-23 18:57:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-10-23 18:57:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-10-23 18:57:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-10-23 18:57:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-23 18:57:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-23 18:57:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-23 18:57:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-10-23 18:57:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-10-23 18:57:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-10-23 18:57:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-10-23 18:57:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-10-23 18:57:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-10-23 18:57:41,597 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-10-23 18:57:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-10-23 18:57:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-10-23 18:57:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-10-23 18:57:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-10-23 18:57:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-10-23 18:57:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-23 18:57:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-23 18:57:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-23 18:57:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-23 18:57:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-23 18:57:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-23 18:57:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-23 18:57:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-23 18:57:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-23 18:57:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-23 18:57:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-23 18:57:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-23 18:57:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:57:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:57:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:57:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:57:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:57:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:57:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:57:43,146 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:57:43,146 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-10-23 18:57:43,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:57:43 BoogieIcfgContainer [2020-10-23 18:57:43,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:57:43,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:57:43,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:57:43,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:57:43,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:57:40" (1/3) ... [2020-10-23 18:57:43,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fd99ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:57:43, skipping insertion in model container [2020-10-23 18:57:43,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:57:41" (2/3) ... [2020-10-23 18:57:43,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fd99ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:57:43, skipping insertion in model container [2020-10-23 18:57:43,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:57:43" (3/3) ... [2020-10-23 18:57:43,159 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-10-23 18:57:43,172 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:57:43,179 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:57:43,194 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:57:43,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:57:43,228 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:57:43,228 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:57:43,228 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:57:43,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:57:43,228 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:57:43,228 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:57:43,229 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:57:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states. [2020-10-23 18:57:43,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:57:43,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:57:43,288 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, 1] [2020-10-23 18:57:43,288 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:57:43,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:57:43,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1049535472, now seen corresponding path program 1 times [2020-10-23 18:57:43,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:57:43,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169732019] [2020-10-23 18:57:43,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:57:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,474 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:57:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:57:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:57:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:57:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:57:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:57:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:57:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:57:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:57:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:57:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:57:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:57:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:57:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:57:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:57:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:57:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:57:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:57:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:57:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:57:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:57:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:44,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:57:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:45,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:57:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:57:45,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169732019] [2020-10-23 18:57:45,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:57:45,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:57:45,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211723165] [2020-10-23 18:57:45,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:57:45,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:57:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:57:45,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:57:45,179 INFO L87 Difference]: Start difference. First operand 503 states. Second operand 8 states. [2020-10-23 18:57:45,692 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-23 18:57:45,916 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-23 18:57:46,435 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 18:57:46,691 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:57:47,052 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-23 18:57:56,608 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:57:57,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:57:57,491 INFO L93 Difference]: Finished difference Result 1304 states and 2142 transitions. [2020-10-23 18:57:57,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:57:57,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2020-10-23 18:57:57,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:57:57,545 INFO L225 Difference]: With dead ends: 1304 [2020-10-23 18:57:57,545 INFO L226 Difference]: Without dead ends: 811 [2020-10-23 18:57:57,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:57:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-10-23 18:57:57,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 491. [2020-10-23 18:57:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-10-23 18:57:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 719 transitions. [2020-10-23 18:57:57,805 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 719 transitions. Word has length 241 [2020-10-23 18:57:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:57:57,806 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 719 transitions. [2020-10-23 18:57:57,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:57:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 719 transitions. [2020-10-23 18:57:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:57:57,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:57:57,814 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, 1] [2020-10-23 18:57:57,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:57:57,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:57:57,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:57:57,816 INFO L82 PathProgramCache]: Analyzing trace with hash -137441870, now seen corresponding path program 1 times [2020-10-23 18:57:57,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:57:57,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016669572] [2020-10-23 18:57:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:57:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,459 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:57:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:57:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:57:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:57:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:57:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:57:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:57:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:57:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:57:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:57:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:57:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:57:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:57:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:57:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:57:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:57:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:57:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:57:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:57:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:57:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:57:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:57:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:57:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:57:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:57:58,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016669572] [2020-10-23 18:57:58,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:57:58,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 18:57:58,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301020034] [2020-10-23 18:57:58,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:57:58,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:57:58,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:57:59,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:57:59,000 INFO L87 Difference]: Start difference. First operand 491 states and 719 transitions. Second operand 9 states. [2020-10-23 18:57:59,522 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 18:57:59,737 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:58:00,059 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:58:00,455 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:58:09,971 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-23 18:58:10,274 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-23 18:58:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:58:17,777 INFO L93 Difference]: Finished difference Result 1994 states and 3101 transitions. [2020-10-23 18:58:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:58:17,778 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2020-10-23 18:58:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:58:17,795 INFO L225 Difference]: With dead ends: 1994 [2020-10-23 18:58:17,795 INFO L226 Difference]: Without dead ends: 1534 [2020-10-23 18:58:17,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-10-23 18:58:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2020-10-23 18:58:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 966. [2020-10-23 18:58:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2020-10-23 18:58:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1428 transitions. [2020-10-23 18:58:18,143 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1428 transitions. Word has length 241 [2020-10-23 18:58:18,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:58:18,144 INFO L481 AbstractCegarLoop]: Abstraction has 966 states and 1428 transitions. [2020-10-23 18:58:18,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:58:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1428 transitions. [2020-10-23 18:58:18,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:58:18,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:58:18,157 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, 1] [2020-10-23 18:58:18,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:58:18,157 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:58:18,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:58:18,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1495512401, now seen corresponding path program 1 times [2020-10-23 18:58:18,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:58:18,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599284807] [2020-10-23 18:58:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:58:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:18,737 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:58:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:58:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:18,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:58:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:18,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:58:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:18,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:58:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:18,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:58:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:58:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:58:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:58:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:58:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:58:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:58:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:58:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:58:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:58:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:58:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:58:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:58:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:58:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:58:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:58:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:58:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:58:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:58:19,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599284807] [2020-10-23 18:58:19,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:58:19,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 18:58:19,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394674954] [2020-10-23 18:58:19,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:58:19,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:58:19,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:58:19,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:58:19,249 INFO L87 Difference]: Start difference. First operand 966 states and 1428 transitions. Second operand 9 states. [2020-10-23 18:58:19,902 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 18:58:20,096 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:58:20,362 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:58:30,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:58:30,409 INFO L93 Difference]: Finished difference Result 2457 states and 3747 transitions. [2020-10-23 18:58:30,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:58:30,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2020-10-23 18:58:30,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:58:30,420 INFO L225 Difference]: With dead ends: 2457 [2020-10-23 18:58:30,421 INFO L226 Difference]: Without dead ends: 1522 [2020-10-23 18:58:30,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:58:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-10-23 18:58:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 966. [2020-10-23 18:58:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2020-10-23 18:58:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1421 transitions. [2020-10-23 18:58:30,640 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1421 transitions. Word has length 241 [2020-10-23 18:58:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:58:30,640 INFO L481 AbstractCegarLoop]: Abstraction has 966 states and 1421 transitions. [2020-10-23 18:58:30,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:58:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1421 transitions. [2020-10-23 18:58:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:58:30,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:58:30,645 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, 1] [2020-10-23 18:58:30,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:58:30,645 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:58:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:58:30,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1725447091, now seen corresponding path program 1 times [2020-10-23 18:58:30,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:58:30,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357186454] [2020-10-23 18:58:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:58:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,256 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:58:31,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:58:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:58:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:58:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:58:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:58:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:58:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:58:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:58:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:58:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:58:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:58:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:58:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:58:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:58:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:58:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:58:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:58:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:58:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:58:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:58:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:58:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:58:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:58:31,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357186454] [2020-10-23 18:58:31,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:58:31,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:58:31,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535921795] [2020-10-23 18:58:31,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:58:31,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:58:31,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:58:31,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:58:31,840 INFO L87 Difference]: Start difference. First operand 966 states and 1421 transitions. Second operand 10 states. [2020-10-23 18:58:32,349 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 18:58:32,549 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 18:58:32,823 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 18:58:34,025 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-10-23 18:58:34,190 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-23 18:58:35,236 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-23 18:58:39,041 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 18:58:39,755 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:58:41,804 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-10-23 18:58:42,660 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:58:56,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:58:56,513 INFO L93 Difference]: Finished difference Result 4080 states and 6278 transitions. [2020-10-23 18:58:56,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 18:58:56,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 18:58:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:58:56,534 INFO L225 Difference]: With dead ends: 4080 [2020-10-23 18:58:56,535 INFO L226 Difference]: Without dead ends: 3145 [2020-10-23 18:58:56,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:58:56,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2020-10-23 18:58:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 2001. [2020-10-23 18:58:56,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-23 18:58:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2994 transitions. [2020-10-23 18:58:56,931 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2994 transitions. Word has length 241 [2020-10-23 18:58:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:58:56,931 INFO L481 AbstractCegarLoop]: Abstraction has 2001 states and 2994 transitions. [2020-10-23 18:58:56,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:58:56,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2994 transitions. [2020-10-23 18:58:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:58:56,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:58:56,936 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, 1] [2020-10-23 18:58:56,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:58:56,936 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:58:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:58:56,937 INFO L82 PathProgramCache]: Analyzing trace with hash 870907633, now seen corresponding path program 1 times [2020-10-23 18:58:56,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:58:56,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833748541] [2020-10-23 18:58:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:58:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:57,629 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:58:57,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:58:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:58:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:57,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:58:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:57,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:58:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:57,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:58:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:57,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:58:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:58:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:58:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:58:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:58:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:58:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:58:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:58:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:58:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:58:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:58:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:58:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:58:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:58:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:58:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:58:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:58:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:58:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:58:58,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833748541] [2020-10-23 18:58:58,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:58:58,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:58:58,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844252439] [2020-10-23 18:58:58,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:58:58,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:58:58,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:58:58,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:58:58,165 INFO L87 Difference]: Start difference. First operand 2001 states and 2994 transitions. Second operand 10 states. [2020-10-23 18:58:58,639 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 18:58:58,839 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:58:59,155 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:58:59,514 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:59:09,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:59:09,674 INFO L93 Difference]: Finished difference Result 5049 states and 7761 transitions. [2020-10-23 18:59:09,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:59:09,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 18:59:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:59:09,695 INFO L225 Difference]: With dead ends: 5049 [2020-10-23 18:59:09,695 INFO L226 Difference]: Without dead ends: 3081 [2020-10-23 18:59:09,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:59:09,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2020-10-23 18:59:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2001. [2020-10-23 18:59:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-23 18:59:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2976 transitions. [2020-10-23 18:59:10,231 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2976 transitions. Word has length 241 [2020-10-23 18:59:10,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:59:10,232 INFO L481 AbstractCegarLoop]: Abstraction has 2001 states and 2976 transitions. [2020-10-23 18:59:10,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:59:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2976 transitions. [2020-10-23 18:59:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:59:10,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:59:10,236 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, 1] [2020-10-23 18:59:10,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 18:59:10,236 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:59:10,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:59:10,237 INFO L82 PathProgramCache]: Analyzing trace with hash 628449525, now seen corresponding path program 1 times [2020-10-23 18:59:10,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:59:10,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947897662] [2020-10-23 18:59:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:59:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:10,845 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:59:10,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:59:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:10,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:59:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:10,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:59:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:10,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:59:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:59:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:59:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:59:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:59:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:59:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:59:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:59:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:59:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:59:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:59:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:59:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:59:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:59:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:59:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:59:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:59:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:59:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:59:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:59:11,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947897662] [2020-10-23 18:59:11,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:59:11,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:59:11,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134153817] [2020-10-23 18:59:11,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:59:11,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:59:11,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:59:11,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:59:11,384 INFO L87 Difference]: Start difference. First operand 2001 states and 2976 transitions. Second operand 10 states. [2020-10-23 18:59:11,900 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 18:59:12,107 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:59:12,376 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:59:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:59:22,678 INFO L93 Difference]: Finished difference Result 5043 states and 7711 transitions. [2020-10-23 18:59:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:59:22,678 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 18:59:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:59:22,697 INFO L225 Difference]: With dead ends: 5043 [2020-10-23 18:59:22,697 INFO L226 Difference]: Without dead ends: 3075 [2020-10-23 18:59:22,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:59:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2020-10-23 18:59:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2001. [2020-10-23 18:59:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2020-10-23 18:59:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2958 transitions. [2020-10-23 18:59:23,336 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2958 transitions. Word has length 241 [2020-10-23 18:59:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:59:23,336 INFO L481 AbstractCegarLoop]: Abstraction has 2001 states and 2958 transitions. [2020-10-23 18:59:23,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:59:23,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2958 transitions. [2020-10-23 18:59:23,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:59:23,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:59:23,339 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, 1] [2020-10-23 18:59:23,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 18:59:23,339 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:59:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:59:23,340 INFO L82 PathProgramCache]: Analyzing trace with hash 2006101617, now seen corresponding path program 1 times [2020-10-23 18:59:23,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:59:23,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329138652] [2020-10-23 18:59:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:59:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:23,945 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:59:23,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:59:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:59:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:59:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:59:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:59:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:59:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:59:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:59:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:59:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:59:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:59:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:59:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:59:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:59:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:59:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:59:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:59:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:59:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:59:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:59:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:59:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:59:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:59:24,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329138652] [2020-10-23 18:59:24,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:59:24,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:59:24,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334908108] [2020-10-23 18:59:24,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:59:24,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:59:24,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:59:24,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:59:24,473 INFO L87 Difference]: Start difference. First operand 2001 states and 2958 transitions. Second operand 10 states. [2020-10-23 18:59:25,021 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 18:59:25,222 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 18:59:25,494 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 18:59:26,695 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-10-23 18:59:26,850 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-23 18:59:27,845 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-23 18:59:31,372 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 18:59:32,109 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:59:34,077 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-10-23 18:59:34,459 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 18:59:47,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:59:47,368 INFO L93 Difference]: Finished difference Result 8423 states and 13000 transitions. [2020-10-23 18:59:47,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 18:59:47,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 18:59:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:59:47,407 INFO L225 Difference]: With dead ends: 8423 [2020-10-23 18:59:47,407 INFO L226 Difference]: Without dead ends: 6455 [2020-10-23 18:59:47,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:59:47,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2020-10-23 18:59:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 4239. [2020-10-23 18:59:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2020-10-23 18:59:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 6414 transitions. [2020-10-23 18:59:48,511 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 6414 transitions. Word has length 241 [2020-10-23 18:59:48,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:59:48,512 INFO L481 AbstractCegarLoop]: Abstraction has 4239 states and 6414 transitions. [2020-10-23 18:59:48,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:59:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 6414 transitions. [2020-10-23 18:59:48,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 18:59:48,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:59:48,515 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, 1] [2020-10-23 18:59:48,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 18:59:48,516 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:59:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:59:48,516 INFO L82 PathProgramCache]: Analyzing trace with hash 731177971, now seen corresponding path program 1 times [2020-10-23 18:59:48,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:59:48,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75252920] [2020-10-23 18:59:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:59:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,132 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 18:59:49,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:59:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:59:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:59:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 18:59:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 18:59:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 18:59:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:59:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:59:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:59:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 18:59:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:59:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 18:59:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 18:59:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 18:59:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 18:59:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 18:59:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:59:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 18:59:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 18:59:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 18:59:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 18:59:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 18:59:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:59:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:59:49,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75252920] [2020-10-23 18:59:49,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:59:49,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:59:49,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829653689] [2020-10-23 18:59:49,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:59:49,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:59:49,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:59:49,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:59:49,619 INFO L87 Difference]: Start difference. First operand 4239 states and 6414 transitions. Second operand 10 states. [2020-10-23 18:59:50,144 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 18:59:50,345 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 18:59:50,644 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 19:00:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:00:01,286 INFO L93 Difference]: Finished difference Result 10553 states and 16347 transitions. [2020-10-23 19:00:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:00:01,287 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:00:01,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:00:01,325 INFO L225 Difference]: With dead ends: 10553 [2020-10-23 19:00:01,325 INFO L226 Difference]: Without dead ends: 6347 [2020-10-23 19:00:01,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:00:01,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2020-10-23 19:00:02,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 4239. [2020-10-23 19:00:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2020-10-23 19:00:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 6366 transitions. [2020-10-23 19:00:02,258 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 6366 transitions. Word has length 241 [2020-10-23 19:00:02,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:00:02,258 INFO L481 AbstractCegarLoop]: Abstraction has 4239 states and 6366 transitions. [2020-10-23 19:00:02,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:00:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 6366 transitions. [2020-10-23 19:00:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:00:02,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:00:02,262 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, 1] [2020-10-23 19:00:02,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:00:02,262 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:00:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:00:02,263 INFO L82 PathProgramCache]: Analyzing trace with hash 106913903, now seen corresponding path program 1 times [2020-10-23 19:00:02,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:00:02,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639025126] [2020-10-23 19:00:02,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:00:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:02,790 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:00:02,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:00:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:02,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:00:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:02,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:00:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:02,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:00:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:00:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:00:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:00:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:00:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:00:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:00:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:00:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:00:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:00:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:00:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:00:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:00:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:00:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:00:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:00:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:00:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:00:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:00:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:00:03,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639025126] [2020-10-23 19:00:03,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:00:03,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:00:03,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050932768] [2020-10-23 19:00:03,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:00:03,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:00:03,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:00:03,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:00:03,249 INFO L87 Difference]: Start difference. First operand 4239 states and 6366 transitions. Second operand 10 states. [2020-10-23 19:00:03,736 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 19:00:03,928 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:00:04,228 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:00:04,977 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-23 19:00:05,147 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-23 19:00:05,780 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-23 19:00:08,880 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 19:00:11,085 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-23 19:00:11,455 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 19:00:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:00:23,285 INFO L93 Difference]: Finished difference Result 17729 states and 27688 transitions. [2020-10-23 19:00:23,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:00:23,286 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:00:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:00:23,342 INFO L225 Difference]: With dead ends: 17729 [2020-10-23 19:00:23,343 INFO L226 Difference]: Without dead ends: 13523 [2020-10-23 19:00:23,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:00:23,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2020-10-23 19:00:25,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 9159. [2020-10-23 19:00:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9159 states. [2020-10-23 19:00:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9159 states to 9159 states and 14162 transitions. [2020-10-23 19:00:25,404 INFO L78 Accepts]: Start accepts. Automaton has 9159 states and 14162 transitions. Word has length 241 [2020-10-23 19:00:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:00:25,404 INFO L481 AbstractCegarLoop]: Abstraction has 9159 states and 14162 transitions. [2020-10-23 19:00:25,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:00:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9159 states and 14162 transitions. [2020-10-23 19:00:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:00:25,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:00:25,408 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, 1] [2020-10-23 19:00:25,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:00:25,408 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:00:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:00:25,408 INFO L82 PathProgramCache]: Analyzing trace with hash 320530989, now seen corresponding path program 1 times [2020-10-23 19:00:25,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:00:25,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489920160] [2020-10-23 19:00:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:00:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:25,895 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:00:25,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:00:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:25,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:00:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:25,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:00:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:00:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:00:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:00:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:00:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:00:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:00:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:00:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:00:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:00:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:00:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:00:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:00:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:00:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:00:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:00:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:00:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:00:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:00:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:00:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:00:26,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489920160] [2020-10-23 19:00:26,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:00:26,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:00:26,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115412619] [2020-10-23 19:00:26,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:00:26,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:00:26,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:00:26,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:00:26,280 INFO L87 Difference]: Start difference. First operand 9159 states and 14162 transitions. Second operand 10 states. [2020-10-23 19:00:26,852 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 19:00:27,051 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 19:00:27,326 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 19:00:27,718 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 19:00:39,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:00:39,129 INFO L93 Difference]: Finished difference Result 22481 states and 35509 transitions. [2020-10-23 19:00:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:00:39,130 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:00:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:00:39,187 INFO L225 Difference]: With dead ends: 22481 [2020-10-23 19:00:39,187 INFO L226 Difference]: Without dead ends: 13355 [2020-10-23 19:00:39,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:00:39,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13355 states. [2020-10-23 19:00:41,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13355 to 9159. [2020-10-23 19:00:41,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9159 states. [2020-10-23 19:00:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9159 states to 9159 states and 14030 transitions. [2020-10-23 19:00:41,316 INFO L78 Accepts]: Start accepts. Automaton has 9159 states and 14030 transitions. Word has length 241 [2020-10-23 19:00:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:00:41,316 INFO L481 AbstractCegarLoop]: Abstraction has 9159 states and 14030 transitions. [2020-10-23 19:00:41,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:00:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9159 states and 14030 transitions. [2020-10-23 19:00:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:00:41,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:00:41,320 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, 1] [2020-10-23 19:00:41,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:00:41,321 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:00:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:00:41,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1240850639, now seen corresponding path program 1 times [2020-10-23 19:00:41,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:00:41,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699636878] [2020-10-23 19:00:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:00:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:41,796 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:00:41,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:00:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:41,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:00:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:41,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:00:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:41,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:00:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:41,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:00:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:00:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:00:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:00:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:00:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:00:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:00:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:00:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:00:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:00:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:00:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:00:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:00:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:00:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:00:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:00:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:00:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:00:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:00:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:00:42,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699636878] [2020-10-23 19:00:42,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:00:42,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:00:42,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124111862] [2020-10-23 19:00:42,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:00:42,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:00:42,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:00:42,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:00:42,210 INFO L87 Difference]: Start difference. First operand 9159 states and 14030 transitions. Second operand 10 states. [2020-10-23 19:00:42,681 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 19:00:42,863 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:00:43,122 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:00:44,305 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-10-23 19:00:45,254 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-23 19:00:48,619 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 19:00:51,658 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-10-23 19:01:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:01:08,568 INFO L93 Difference]: Finished difference Result 38017 states and 60400 transitions. [2020-10-23 19:01:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:01:08,568 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:01:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:01:08,690 INFO L225 Difference]: With dead ends: 38017 [2020-10-23 19:01:08,690 INFO L226 Difference]: Without dead ends: 28891 [2020-10-23 19:01:08,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:01:08,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28891 states. [2020-10-23 19:01:12,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28891 to 20223. [2020-10-23 19:01:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20223 states. [2020-10-23 19:01:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20223 states to 20223 states and 32194 transitions. [2020-10-23 19:01:12,642 INFO L78 Accepts]: Start accepts. Automaton has 20223 states and 32194 transitions. Word has length 241 [2020-10-23 19:01:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:01:12,643 INFO L481 AbstractCegarLoop]: Abstraction has 20223 states and 32194 transitions. [2020-10-23 19:01:12,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:01:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 20223 states and 32194 transitions. [2020-10-23 19:01:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:01:12,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:01:12,648 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, 1] [2020-10-23 19:01:12,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 19:01:12,648 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:01:12,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:01:12,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1123614831, now seen corresponding path program 1 times [2020-10-23 19:01:12,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:01:12,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649222653] [2020-10-23 19:01:12,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:01:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,214 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:01:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:01:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:01:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:01:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:01:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:01:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:01:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:01:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:01:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:01:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:01:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:01:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:01:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:01:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:01:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:01:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:01:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:01:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:01:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:01:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:01:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:01:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:01:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:01:13,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649222653] [2020-10-23 19:01:13,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:01:13,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:01:13,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005293584] [2020-10-23 19:01:13,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:01:13,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:01:13,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:01:13,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:01:13,610 INFO L87 Difference]: Start difference. First operand 20223 states and 32194 transitions. Second operand 10 states. [2020-10-23 19:01:14,072 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 19:01:14,251 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:01:14,515 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:01:15,717 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-10-23 19:01:16,671 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-23 19:01:20,286 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 19:01:23,633 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-10-23 19:01:24,187 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 19:01:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:01:46,012 INFO L93 Difference]: Finished difference Result 83381 states and 137356 transitions. [2020-10-23 19:01:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:01:46,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:01:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:01:46,402 INFO L225 Difference]: With dead ends: 83381 [2020-10-23 19:01:46,403 INFO L226 Difference]: Without dead ends: 63191 [2020-10-23 19:01:46,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:01:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63191 states. [2020-10-23 19:01:54,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63191 to 45915. [2020-10-23 19:01:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45915 states. [2020-10-23 19:01:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45915 states to 45915 states and 76906 transitions. [2020-10-23 19:01:54,580 INFO L78 Accepts]: Start accepts. Automaton has 45915 states and 76906 transitions. Word has length 241 [2020-10-23 19:01:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:01:54,581 INFO L481 AbstractCegarLoop]: Abstraction has 45915 states and 76906 transitions. [2020-10-23 19:01:54,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:01:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 45915 states and 76906 transitions. [2020-10-23 19:01:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:01:54,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:01:54,589 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, 1] [2020-10-23 19:01:54,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-23 19:01:54,589 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:01:54,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:01:54,590 INFO L82 PathProgramCache]: Analyzing trace with hash -601227407, now seen corresponding path program 1 times [2020-10-23 19:01:54,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:01:54,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101960462] [2020-10-23 19:01:54,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:01:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,062 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:01:55,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:01:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:01:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:01:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:01:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:01:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:01:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:01:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:01:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:01:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:01:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:01:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:01:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:01:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:01:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:01:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:01:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:01:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:01:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:01:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:01:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:01:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:01:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:01:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:01:55,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101960462] [2020-10-23 19:01:55,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:01:55,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:01:55,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876951642] [2020-10-23 19:01:55,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:01:55,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:01:55,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:01:55,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:01:55,615 INFO L87 Difference]: Start difference. First operand 45915 states and 76906 transitions. Second operand 10 states. [2020-10-23 19:01:56,078 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-23 19:01:56,256 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 19:01:56,505 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-23 19:02:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:02:15,495 INFO L93 Difference]: Finished difference Result 108521 states and 186221 transitions. [2020-10-23 19:02:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:02:15,495 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:02:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:02:15,736 INFO L225 Difference]: With dead ends: 108521 [2020-10-23 19:02:15,736 INFO L226 Difference]: Without dead ends: 62639 [2020-10-23 19:02:16,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:02:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62639 states. [2020-10-23 19:02:24,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62639 to 45915. [2020-10-23 19:02:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45915 states. [2020-10-23 19:02:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45915 states to 45915 states and 75838 transitions. [2020-10-23 19:02:24,264 INFO L78 Accepts]: Start accepts. Automaton has 45915 states and 75838 transitions. Word has length 241 [2020-10-23 19:02:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:02:24,265 INFO L481 AbstractCegarLoop]: Abstraction has 45915 states and 75838 transitions. [2020-10-23 19:02:24,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:02:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 45915 states and 75838 transitions. [2020-10-23 19:02:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:02:24,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:02:24,272 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, 1] [2020-10-23 19:02:24,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-23 19:02:24,272 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:02:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:02:24,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1304070381, now seen corresponding path program 1 times [2020-10-23 19:02:24,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:02:24,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001603595] [2020-10-23 19:02:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:02:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:24,762 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:02:24,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:02:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,000 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-23 19:02:25,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:02:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:02:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:02:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:02:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:02:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:02:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:02:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:02:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:02:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:02:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:02:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:02:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:02:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:02:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:02:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:02:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:02:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:02:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:02:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:02:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:02:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:02:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:02:25,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001603595] [2020-10-23 19:02:25,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:02:25,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:02:25,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866177970] [2020-10-23 19:02:25,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:02:25,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:02:25,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:02:25,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:02:25,449 INFO L87 Difference]: Start difference. First operand 45915 states and 75838 transitions. Second operand 10 states. [2020-10-23 19:02:25,962 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 19:02:26,149 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:02:26,395 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:02:27,491 WARN L193 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 242 [2020-10-23 19:02:28,474 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-23 19:02:32,225 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 19:02:36,407 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 241 [2020-10-23 19:02:37,066 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-23 19:03:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:03:09,588 INFO L93 Difference]: Finished difference Result 186649 states and 319816 transitions. [2020-10-23 19:03:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:03:09,589 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:03:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:03:10,204 INFO L225 Difference]: With dead ends: 186649 [2020-10-23 19:03:10,205 INFO L226 Difference]: Without dead ends: 140767 [2020-10-23 19:03:10,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:03:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140767 states. [2020-10-23 19:03:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140767 to 106371. [2020-10-23 19:03:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106371 states. [2020-10-23 19:03:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106371 states to 106371 states and 188042 transitions. [2020-10-23 19:03:26,946 INFO L78 Accepts]: Start accepts. Automaton has 106371 states and 188042 transitions. Word has length 241 [2020-10-23 19:03:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:03:26,946 INFO L481 AbstractCegarLoop]: Abstraction has 106371 states and 188042 transitions. [2020-10-23 19:03:26,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:03:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 106371 states and 188042 transitions. [2020-10-23 19:03:26,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 19:03:26,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:03:26,971 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, 1] [2020-10-23 19:03:26,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-23 19:03:26,971 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:03:26,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:03:26,972 INFO L82 PathProgramCache]: Analyzing trace with hash -977051537, now seen corresponding path program 1 times [2020-10-23 19:03:26,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 19:03:26,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28760032] [2020-10-23 19:03:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:03:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,460 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-23 19:03:27,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:03:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,719 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-23 19:03:27,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 19:03:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 19:03:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 19:03:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 19:03:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-23 19:03:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:03:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 19:03:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:03:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 19:03:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 19:03:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 19:03:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 19:03:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-23 19:03:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 19:03:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-23 19:03:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:03:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-23 19:03:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:03:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:27,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-23 19:03:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:28,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:03:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:28,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 19:03:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:03:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:03:28,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28760032] [2020-10-23 19:03:28,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:03:28,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:03:28,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224181608] [2020-10-23 19:03:28,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:03:28,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 19:03:28,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:03:28,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:03:28,143 INFO L87 Difference]: Start difference. First operand 106371 states and 188042 transitions. Second operand 10 states. [2020-10-23 19:03:28,675 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-23 19:03:28,955 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:03:29,213 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-23 19:03:29,845 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-23 19:03:29,996 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-23 19:03:30,523 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-23 19:03:34,261 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-23 19:03:39,805 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-23 19:04:39,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:04:39,509 INFO L93 Difference]: Finished difference Result 433494 states and 801582 transitions. [2020-10-23 19:04:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:04:39,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 241 [2020-10-23 19:04:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:04:41,453 INFO L225 Difference]: With dead ends: 433494 [2020-10-23 19:04:41,453 INFO L226 Difference]: Without dead ends: 327156 [2020-10-23 19:04:42,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:04:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327156 states.